Custom Linear Module Solutions | ZHEJIANG SIKETE TECHNOLOGY CO., LTD.
Created on 10.06
Custom Linear Module Solutions | ZHEJIANG SIKETE TECHNOLOGY CO., LTD.
ZHEJIANG SIKETE TECHNOLOGY CO., LTD. is a dedicated manufacturer of precision linear motion components, and its custom linear module program is built for machine builders, automation integrators, and distributors who need motion axes that fit their design instead of forcing their design to fit a catalog part. Since 2011 the company has focused on the research, development, and production of linear modules, actuators, ball screws, and related automation hardware, serving customers in more than thirty countries. A linear module is far more than an aluminum extrusion with a carriage on top; it is a complete, tested motion axis that combines structural rigidity, guidance, drive, sealing, and feedback into one package. Because every production line has unique stroke, payload, speed, and environmental requirements, off-the-shelf solutions often force engineers into compromises that reduce throughput or shorten service life. Buying a custom linear module from a manufacturer that controls machining, assembly, and testing in-house removes those compromises and shortens the path from drawing to a working machine. This article explains what our linear module range offers, how to select the right axis for your application, and how to move from inquiry to delivery with a predictable, well-documented process.
Why Choose Our Linear Modules
High precision, high rigidity, and repeatable positioning
Every linear module we produce begins with a structural profile that is machined on precision CNC centers, so the mounting faces, rail seats, and end-plate interfaces are aligned to tight tolerances before any motion component is installed. Rigidity is engineered rather than assumed: wall thickness, rib geometry, and the number of load-bearing rail blocks are selected according to the actual moment loads your application will generate. Because the carriage rides on preloaded linear guide rails, backlash and elastic deflection stay low even when the axis carries an offset load or a cantilevered tool head. Repeatability of ±0.005 mm is achievable on our precision ball screw linear module series, and we verify positioning accuracy with laser interferometry before shipment on request. Thermal behavior also matters, so we match screw preload and lubrication to the duty cycle to limit heat-driven drift during long shifts. For engineers, this translates into tighter process windows, less scrap, and fewer recalibration stops on a running production line. For purchasing teams, it means a linear module that holds its specification for years rather than months.
Smooth, low-noise operation for demanding automation
Noise and vibration are often the first symptoms of a poorly matched motion axis, and they matter most in electronics, medical, and laboratory environments where operators work beside the machine. Our belt-driven linear module designs use high-quality synchronous belts, precision pulleys, and balanced tensioning to keep running noise low even at high speed. Ball screw versions use ground or rolled screws matched to angular contact bearings, with preload chosen to remove axial play without adding excess friction. We also pay close attention to seal design, because a clean internal environment keeps grease in place, keeps dust out, and prevents the stick-slip behavior that creates jerky motion. Smooth motion improves more than comfort: it reduces settling time, improves surface finish in cutting and dispensing processes, and extends the life of the bearings and belts. For high-speed pick-and-place and laser applications, that smoothness converts directly into shorter cycle times and better yield.
Custom stroke, load capacity, speed, and mounting options
There is no single linear module specification that fits every machine, so we treat stroke, payload, speed, and mounting as variables rather than fixed catalog numbers. Strokes can be configured from a few hundred millimeters up to several meters, with the profile length, screw or belt pitch, and support structure adjusted to prevent sag and whip on longer axes. Payload ratings are matched to the guidance system and frame stiffness, and we can add a second rail, a wider carriage, or a reinforced profile when the application carries heavy or highly dynamic loads. Speed requirements drive a clear decision between belt-driven and screw-driven architectures, since belt systems excel at fast, long-travel positioning while ball screw systems win on thrust and accuracy. Mounting is equally flexible: we machine custom hole patterns, tapped inserts, dowel pin locations, cable-chain brackets, and end plates so the axis bolts directly onto your existing frame without adapter plates. Motor interfaces can be prepared for your preferred servo motor or stepper brand, including the correct shaft diameter, keyway, and flange pattern. Every one of these choices is documented in a drawing that you approve before production begins.
Durable components and strict quality control
Long service life comes from component quality and from disciplined manufacturing, and we source bearings, rails, screws, and belts from qualified suppliers with traceable material certificates. Incoming inspection checks dimensions, hardness, and surface condition before components reach the assembly line, so problems are caught before they become finished goods. Assembly happens in a controlled workshop where cleanliness, torque values, and preload settings are standardized rather than left to individual judgment. Every axis then undergoes a run-in and functional test that measures noise, backlash, running torque, and repeatability against the approved drawing. We keep quality records for each batch, which means a replacement linear module built two years from now can be made to the same specification as the original. This consistency is what allows our customers to scale a proven machine design across multiple factories and countries without redesigning the motion system each time.
Product Range and Specifications
Ball screw and belt-driven linear modules
Our catalog is organized around two main drive families, plus a growing range of specialized stages, and the full overview is available on our PRODUCTS page. Ball screw linear modules use a rotating screw and a preloaded nut to convert motor torque into precise linear thrust, making them the natural choice for applications that need high force, fine positioning, and strong resistance to back-driving. Belt-driven linear modules use a toothed belt and pulley arrangement, which delivers high speed and long stroke at a lower cost per meter because belt systems do not suffer from screw whip or critical-speed limits. Between these two families sit our precision slide tables, including the PSH, PSS, PSM, and PSC series, along with PBS and PBC synchronous belt slides, SKR linear motor stages, and SHS gear rack drives for very long travel. Detailed specifications for each family are listed under Key Products, including dimensions, load ratings, and recommended motor sizes. If your application does not map cleanly onto a standard series, the same components are used as building blocks for a fully custom linear module.
Payload, stroke, accuracy, speed, and motor compatibility
Specification decisions always start with five numbers: payload, stroke, required accuracy, maximum speed, and duty cycle, and we ask for all five before recommending a configuration. Payload includes the tool, fixture, and any cable chain mass, and it must be evaluated together with the distance between the load center of gravity and the carriage center. Stroke determines both the profile length and, on screw-driven axes, whether a larger screw diameter or a different support arrangement is needed to avoid vibration at high rotational speed. Accuracy and repeatability are separate requirements: a process may tolerate moderate absolute accuracy but demand very tight repeatability, which is driven mainly by preload, rail quality, and encoder resolution. Speed targets decide the drive family, since a belt-driven linear module can reach several meters per second while a ball screw axis of comparable size is usually limited to a fraction of that. Motor compatibility is handled through standardized mounting flanges, couplings, and shaft details for common servo motor and stepper brands, and we can supply the axis with a matched motor and drive if you prefer a single source.
Optional sensors, couplings, brackets, and controllers
A motion axis becomes truly useful when it is delivered as a complete, ready-to-mount assembly, so we offer a wide set of accessories that remove integration work from your shop floor. Limit and home sensors can be mounted in the profile grooves or in custom-machined pockets, with cable routing built into the extrusion so wiring stays protected. Couplings are selected for torsional stiffness and misalignment tolerance, which prevents premature bearing wear and vibration at high speed. Mounting brackets, adapter plates, and cable chain supports can be machined to your drawings, allowing the linear module to bolt directly onto an existing machine frame. For customers who want a single supplier, we also offer matched controllers and drives that are pre-configured with the axis parameters, so commissioning takes minutes instead of hours. Each accessory is listed on the approved drawing with its part number, which simplifies spare-parts management over the life of the machine.
Applications and Industries
Automation, CNC, packaging, electronics, laser, medical, and logistics
Linear modules are general-purpose building blocks, and our units are used across an unusually wide range of industries, which is one reason we accumulate so much application knowledge. In general automation, they form the X, Y, and Z axes of pick-and-place gantries, assembly stations, and dispensing systems where repeatable positioning drives product quality. In CNC and machine tool applications, rigid ball screw axes act as feed drives for drilling, milling, engraving, and tool-setting operations where thrust and stiffness matter more than raw speed. Packaging machinery relies on belt-driven and screw-driven axes for sealing, labeling, filling, and carton handling, often running three shifts a day with minimal maintenance windows. Electronics manufacturing uses compact, low-noise linear modules for PCB handling, inspection, and micro-assembly, where clean operation and fine resolution are essential. Laser cutting, marking, and welding systems depend on smooth, high-speed motion to keep kerf width and beam alignment consistent across the work envelope. Medical and laboratory equipment demands quiet, precise, and easily cleanable axes, while logistics and warehousing applications use long-stroke linear modules for sorting, shuttle, and transfer systems. You can see representative installations on our Application Case page and watch the axes in motion on our VIDEO page.
Because the same product family serves so many different sectors, the differences between applications are mostly about emphasis rather than fundamentals. A packaging axis and a laser axis may share a profile and rail system, but the packaging unit will prioritize speed and dust protection while the laser unit prioritizes straightness and thermal stability. An electronics axis will be selected for low noise and cleanliness, whereas a logistics axis will be selected for long stroke and tolerance of continuous duty. Understanding these priorities lets us adjust seals, lubrication, preload, and drive selection in a way that a generic catalog part never could. This is the practical value of a custom linear module: you pay for the performance your process actually needs and avoid over-engineering the rest. It also means the same supplier can support you as your product line evolves, because the platform is flexible rather than fixed.
Selection Guide
How to choose the right linear module for your machine
A disciplined selection process saves far more money than any discount, so we recommend working through a short, structured checklist before requesting a quotation. First, define the load precisely, including the mass of the tool and fixture and the position of the center of gravity relative to the carriage, because an offset load changes the moment on the rail blocks dramatically. Second, state the stroke you need and then add a safety margin for overtravel, sensor mounting, and cable management, since an axis that is exactly long enough will often be difficult to integrate. Third, separate accuracy from repeatability in your specification, because the two are measured differently and reaching one does not automatically guarantee the other. Fourth, decide on speed and acceleration, keeping in mind that acceleration usually stresses the structure and the drive more than constant velocity does. Fifth, describe the environment, including dust, chips, coolant, humidity, washdown, and ambient temperature, so seals and lubrication can be chosen appropriately. Finally, tell us the duty cycle and expected service life so bearing preload, belt tension, and lubrication intervals can be set for the real working conditions rather than a laboratory ideal.
Key factors: load, speed, precision, environment, and duty cycle
Load, speed, precision, environment, and duty cycle interact with one another, and improving one often imposes a cost on another, which is why a system-level view matters. Increasing speed on a screw-driven axis increases heat generation and can excite vibration, so a belt-driven linear module may be the better answer for long, fast strokes. Increasing precision usually means a higher-grade screw, tighter rail preload, and a better encoder, which raises cost but reduces downstream rejects and rework. A harsh environment requires better sealing, corrosion-resistant finishes, and sometimes a completely different lubrication strategy, and these choices must be made early rather than patched later. Duty cycle determines how much thermal margin and lubrication reserve you need; a machine running continuously with short cycle times will demand more from every component than an intermittent lab instrument. Load distribution matters as well, because a moment load applied to a single carriage creates rail stress that a dual-carriage arrangement can share. When these five factors are specified together, the resulting linear module performs predictably and maintenance becomes a scheduled activity instead of an emergency.
Custom Linear Module Solutions
OEM/ODM support, drawing-based customization, sample and bulk orders
ZHEJIANG SIKETE TECHNOLOGY CO., LTD. supports both OEM and ODM programs, which means we can manufacture to your drawing and specification or help develop a new motion axis from a performance requirement. Customization typically begins with a discussion of the application, followed by a proposal drawing that shows profile length, rail arrangement, drive type, motor interface, and mounting features. We can machine custom end plates, add tapped holes and dowel pin locations, integrate sensor pockets, and adjust sealing for your environment, all within a repeatable production process. For OEM customers, we can apply your part numbers and packaging, provide batch traceability, and maintain consistent specifications across repeat orders so your assembly line never has to re-qualify a component. ODM projects use the same engineering platform but start from a blank sheet, which is ideal for companies developing a new machine generation and wanting exclusive motion hardware. Sample orders are welcome, and a single prototype axis is often the fastest way to validate performance before committing to production volumes. Once the design is frozen, we scale the same approved process to bulk quantities with stable quality and predictable lead times.
Customization is also about documentation and communication, not only about machining. Every project produces a controlled drawing set, a bill of materials, an inspection report, and, where applicable, a test data sheet with measured values so your engineering team can verify the axis against the specification it was ordered to. If your design changes, we track revisions and confirm the new drawing before cutting material, which prevents costly mismatches. We also keep a record of your historical configurations so that a repeat order placed months or years later can be reproduced exactly, including finish, lubrication, and labeling details. This level of process discipline is what makes a custom linear module practical for series production rather than only for one-off prototypes. If your volumes are growing, that same discipline is what keeps quality consistent as quantities increase.
Quality Assurance and Delivery
Manufacturing process, testing, packaging, and lead time
Production begins with incoming material inspection, continues through CNC machining, cleaning, and assembly, and ends with functional testing and packing, with checkpoints recorded at each stage. Rails and screws are mounted on a flat reference surface to keep parallelism and height tolerance within specification, and preload is set using controlled torque values. After assembly, each axis is run in to distribute lubricant evenly across the raceways and to reveal any abnormal friction or noise before the unit leaves the workshop. Testing covers running torque, backlash, repeatability, and, when requested, positioning accuracy measured with a laser interferometer or a calibrated glass scale. Finished units are protected with rust-preventive treatment, wrapped, and packed in reinforced wooden cases or custom foam-lined cartons depending on size and shipping method, with labels matching your part numbers. Standard lead times typically range from a few days for stock or simple configurations to a few weeks for fully custom units, and we confirm the schedule in writing before the order is released. For a broader view of our capabilities, factory equipment, and certifications, visit the ABOUT page or check recent updates on the NEWS page.
Get a Quote for Linear Modules
Contact ZHEJIANG SIKETE TECHNOLOGY CO., LTD. for pricing and consultation
The fastest way to receive an accurate quotation is to send us your application details together with any drawings, photos, or samples you already have, because small details such as mounting hole spacing often determine the final configuration. A complete inquiry includes stroke, payload, required speed and acceleration, accuracy or repeatability target, duty cycle, operating environment, motor preference, and the quantity you expect for the first order and the following year. If you are unsure about some parameters, our engineers are happy to help you estimate them and to propose a configuration that meets the requirement without unnecessary cost. We respond to most technical inquiries within one working day, and complex custom projects usually receive a drawing proposal within a few working days. Pricing is quoted clearly with the scope of supply, and we are glad to explain the trade-offs between alternative drive types so you can compare options honestly. You can reach our team through the inquiry form on the CONTACT page, or start from the HOME page to explore the full product range.
Request a free quote, download the catalog, and send your inquiry today
Choosing the right partner for linear motion hardware affects the performance of your machine for years, so it is worth starting the conversation early in your design cycle. We can supply a sample linear module for bench testing, provide a technical proposal comparing drive options, and estimate lead time against your build schedule before you commit to volume. For distributors and OEM customers, we also discuss stocking programs and repeat-order pricing so that supply stays predictable as your sales grow. Because we manufacture in-house, we can adjust specifications quickly when your application evolves, and we can keep the same approved process across every subsequent batch. Sending an inquiry costs nothing and usually produces a clearer picture of the technical options, the realistic budget, and the delivery timeline. Contact ZHEJIANG SIKETE TECHNOLOGY CO., LTD. today with your requirements, request a free quote, and let our engineering team help you specify a custom linear module that fits your machine exactly.
Frequently Asked Questions (FAQ)
What is a linear module and how do I know if my machine needs one?
A linear module is a self-contained motion axis that combines a structural profile, a guidance system, a drive element such as a ball screw, a belt, a linear motor, or a gear rack, plus the bearings, seals, and mounting interfaces required to move a load along a straight path. Your machine needs one whenever you require guided, repeatable linear movement with controlled speed and positioning, and building that function from separate rails, screws, and brackets usually costs more engineering time than specifying a complete axis. Linear modules are especially valuable when the motion must be accurate, fast, or repeated thousands of times per shift. They also simplify maintenance, because a single replaceable unit can be swapped instead of rebuilding a complex assembly on site. If your design includes a carriage, a drive, and a load, a linear module is almost certainly the most efficient way to deliver it.
How do I choose between a ball screw and a belt-driven linear module?
Choose a ball screw linear module when you need high thrust, fine positioning accuracy, good stiffness under load, and resistance to back-driving, which are typical requirements in CNC feed axes, presses, and precision dispensing. Choose a belt-driven linear module when you need high speed, long travel, and lower cost per meter, which suits pick-and-place, packaging, sorting, and transfer applications. Screw-driven axes are limited by critical speed and screw whip on long strokes, while belt-driven axes lose some positioning accuracy and thrust capacity by comparison. Many machines use both types: belts for long, fast transport moves and screws for short, precise machining or assembly moves. If your application has conflicting requirements, describe both to our engineers and we will propose the configuration that gives the best overall result.
What is the maximum stroke and payload available for a custom linear module?
Stroke and payload are limited by the combinations you select rather than by a single hard ceiling, since a very long stroke is entirely practical on a belt-driven linear module while a screw-driven axis of the same length would need a larger screw diameter or a rotating-nut design. Strokes of several meters are common for belt and gear rack systems, and payloads range from a few kilograms for compact slide tables to hundreds of kilograms when the profile, rail size, and carriage are scaled up. The load rating also depends on how the mass is distributed, because an offset center of gravity creates a moment that reduces the effective capacity. Acceleration and duty cycle further affect the practical limit, since dynamic loads are usually more demanding than static ones. Sending us the load mass and its position relative to the carriage allows us to recommend a safe and economical configuration.
How accurate and repeatable is a precision linear module?
Repeatability of ±0.005 mm is achievable on our precision ball screw linear module series, and absolute positioning accuracy depends on the screw grade, the encoder resolution, and the control system used to command the axis. Repeatability describes how consistently the carriage returns to the same position, while accuracy describes how close that position is to the commanded value, and the two should always be specified separately. Rail preload, screw preload, and the stiffness of the mounting structure all influence the final result, which is why we verify performance with laser interferometry when a customer requires documented data. Thermal growth during long running periods can shift absolute accuracy, so compensation or a closed-loop feedback system may be needed for very demanding processes. In most automation applications, good repeatability with a reliable home reference delivers better results than a high absolute accuracy figure alone.
Can you customize the stroke, mounting pattern, and motor interface of a linear module?
Yes, customization is the core of our business, and we routinely machine custom end plates, tapped holes, dowel pin locations, sensor pockets, and cable routing features to match a customer's drawing. The motor interface can be prepared for common servo motor and stepper brands, including the correct flange pattern, pilot diameter, shaft size, and keyway, so the axis bolts together without adapter parts. We can also supply the axis as a complete assembly with a matched motor, drive, and controller if you prefer a single-source solution. All custom features are documented on an approval drawing that you review before production begins, which prevents misunderstandings and rework. Once approved, the same drawing is used for every repeat order, so future deliveries match the original exactly.
What is the minimum order quantity and typical lead time for a custom linear module?
Minimum order quantity depends on the level of customization, since a standard configuration can often ship from small quantities while a fully custom axis may require a modest minimum for efficient production. We welcome sample orders so that you can validate performance on your own machine before committing to larger volumes. Lead time is confirmed in writing at the time of order and typically ranges from a few days for simple or stocked configurations to a few weeks for custom units with special machining or finishes. Factors that affect the schedule include component availability, drawing approval speed, quantity, and any special testing requirements. Providing complete technical information with your inquiry is the single most effective way to shorten the overall delivery time.
How is a linear module packaged and shipped to overseas customers?
Finished axes are treated with rust-preventive protection, wrapped, and packed in reinforced wooden cases or custom foam-lined cartons, depending on length and weight. Very long units are supported internally to prevent bending or rail damage during transport, and labels are applied according to your part numbers when required. We ship by air, sea, or express courier according to your schedule and budget, and we provide the commercial invoice, packing list, and any certificates needed for customs clearance. Shipping terms such as FOB, CIF, or DDP can be discussed and confirmed in the quotation. We also keep records of each shipment so that a damaged or missing item can be traced and resolved quickly.
What warranty and after-sales support do you provide for linear modules?
Our linear modules are covered by a standard warranty against manufacturing defects, with the exact period confirmed in the sales contract for each order. If a unit does not meet the approved specification or fails under normal use within the warranty period, our engineers review the application data and test records to identify the cause. Where the issue is traceable to our manufacturing, we repair or replace the unit and cover the associated logistics costs. We also provide lifetime technical support, including guidance on lubrication intervals, maintenance procedures, and replacement part identification. Customers who keep their approved drawings on file can reorder identical units at any time, which keeps long-running production lines supplied without interruption.
Which industries benefit most from a custom linear module solution?
Automation integrators, CNC machine builders, packaging equipment manufacturers, electronics assembly companies, laser system suppliers, medical device makers, and logistics equipment providers all benefit from customized linear motion axes. These industries share a need for repeatable positioning, predictable service life, and a motion system that fits an existing machine architecture rather than the other way around. Customization is particularly valuable when the available space is constrained, when the environment is harsh, or when the load and stroke combination does not appear in any standard catalog. It also matters when a machine platform will be produced for years, because a stable, documented linear module specification prevents redesign work and requalification. If your application fits any of these patterns, sending a drawing or requirement summary is the quickest way to receive a concrete proposal.
How do I request a quote for a linear module from ZHEJIANG SIKETE TECHNOLOGY CO., LTD.?
Prepare a short description of your application along with the stroke, payload, speed, accuracy target, duty cycle, and environment, and send it to our team through the inquiry form on the contact page. If you already have drawings, photos, or a sample axis, include them, because visual information often resolves questions that a specification list cannot. Tell us your expected quantity for the first order and for the following year, as this helps us quote the most economical configuration and lead time. Our engineers will review the requirements, ask clarifying questions when needed, and return a technical proposal with pricing. From there, we can produce a sample for validation, finalize the drawing, and move into production with a confirmed schedule.
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