SIKETE single-axis robots are engineered to deliver high-precision, repeatable linear motion for modern automation systems, and they have become one of the most practical building blocks for machine builders around the world. Also known as electric linear modules, these units combine a rigid aluminium extrusion, a precision ball screw or timing belt, and a recirculating linear guide into a single compact assembly. Because the structure, drive, and feedback are matched at the factory, engineers can specify a stroke, payload, and speed combination without designing a mechanism from scratch. The result is a shorter design cycle, fewer assembly errors, and a machine that behaves predictably from the first power-on. SIKETE offers multiple series with stroke options from a few hundred millimetres up to several metres, so a single supplier can cover light dispensing heads as well as heavy gantry axes. Typical duties include assembly, inspection, pick-and-place, and general material handling, all of which depend on smooth acceleration and short settling times. In short, single-axis robots give automation teams a fast, cost-effective route from concept to a working axis that performs to specification.

This guide explains how SIKETE single-axis robots are built, which series suits which duty, and how to select an axis that will not become the bottleneck of your machine. It also covers the applications where electric linear modules outperform pneumatic cylinders and manual slides, and where a belt-driven design is a better economic choice than a ball screw. Buyers will find a selection methodology that starts with payload and stroke and ends with controller and accessory decisions, plus a summary of the technical documents available for design review. Everything described here is supported by the engineering team at ZHEJIANG SIKETE TECHNOLOGY CO., LTD, a manufacturer that has supplied precision automation components since 2011. If you prefer to browse hardware first, the full range is listed on the PRODUCTS page and in the Key Products overview.

The first reason engineers choose SIKETE single-axis robots is structural rigidity. Each axis is built around a high-rigidity aluminium profile machined on both mounting faces, so the ball screw and the linear guide sit in true alignment along the entire stroke. This matters because misalignment between screw and guide converts directly into vibration, noise, and lost accuracy at the tool tip. The linear guide carries the load while the ball screw transmits motion, and each component is sized against the rated payload rather than a marketing figure. Because deflection is controlled, single-axis robots hold repeatability even when the load is overhung or the axis is mounted vertically. Machine builders find that a rigid axis removes a long list of gremlins from a new design, including settling time, position hunting, and inconsistent cycle times between shifts.

Long service life is the second advantage, and it comes from how these linear modules are specified rather than from any single component. Ball screws are hardened and ground, guides are preloaded to a controlled clearance, and lubrication paths are designed so grease reaches the load zone instead of pooling in the end caps. Seals and wipers keep chips and coolant away from the running surfaces, which is essential in machine-tool cells and dirty assembly environments. When maintenance is required, it is usually a matter of re-greasing on a defined interval rather than replacing major components. Customers running three shifts report that correctly matched single-axis robots reach their rated life without unscheduled downtime, which is the number that actually protects production output. Low maintenance also means fewer spares on the shelf, a simpler service contract, and a shorter mean time to repair when something outside the axis fails.

Drive flexibility is the third reason buyers return to SIKETE single-axis robots. The same mechanical platform can be supplied with an AC servo motor for high dynamic performance and closed-loop position control, a stepper motor for cost-sensitive positioning tasks at lower speeds, or a timing belt drive for long strokes and high travel speeds. Servo versions support torque limits, soft limits, and following-error monitoring, which makes them easy to integrate into a safety-rated machine. Stepper versions suit simple indexing and dispensing duties where a fixed move profile is adequate. Belt-driven electric linear modules trade some thrust capacity for speed and length, and they are often the only economical way to cover a two-metre transfer stroke. Because the mechanical interface is common across drives, a machine design can be upgraded later without reworking the mounting bracket.

Customisation and delivery are the practical advantages that close most projects. SIKETE supplies single-axis robots with custom strokes, payload ratings, motor mounting positions, cable management, bellows or cover options, and multi-axis mounting plates, all without treating every request as a new product. Standard models ship from stock or with short lead times, and configured units follow a published schedule so project planners can commit to a build date. Engineers receive dimensional drawings, CAD models, and load calculations early enough to finalise the frame design. A short list of the core benefits looks like this:

Ball screw single-axis robots are the precision workhorses of the range. A ground ball screw converts rotary motor motion into linear travel with very little backlash, and the recirculating guide keeps the carriage constrained in every direction. These axes are the right choice for dispensing, micro-assembly, inspection scanning, and any task where repeatability better than a few hundredths of a millimetre is required. Screw lead is selected against the required speed, so a fine lead gives resolution and thrust while a coarse lead gives travel speed. Because the screw is supported at both ends on longer strokes, whip and critical speed are controlled rather than left to chance. If your process depends on consistent dot placement or repeatable probing, a ball screw axis is almost always the correct starting point.

Belt-driven single-axis robots serve the opposite end of the requirement spectrum. Where travel exceeds roughly two metres or where cycle time dominates, a timing belt with a supported carriage delivers high speed at a much lower cost per metre of stroke. Belt axes are common in transfer, packaging, and gantry applications, and they pair naturally with rack-and-pinion systems on very long travels. Long-stroke and high-payload models extend the range further, using larger guides, dual carriages, and reinforced profiles so heavy tooling can be carried without excessive deflection. Nut-rotation and rotary-axis models handle compact motion tasks where space is tight and the screw must stay stationary while the nut drives the carriage. For complete systems, multi-axis and Cartesian configurations combine two or three of these units with a common controller, giving a ready-made gantry, XY table, or three-axis pick-and-place head.

Assembly is the largest single application for SIKETE single-axis robots. Press-fit stations, screwdriving heads, adhesive dispensing, and connector insertion all benefit from a programmable move profile that can approach slowly and then accelerate away. Inspection is the second major use, because a rigid axis keeps a camera or laser sensor at a constant working distance across the full stroke. Dispensing applications depend on constant velocity, and a servo-controlled electric linear module holds that velocity far more accurately than a pneumatic slide. Pick-and-place heads use single-axis robots as the Z axis below a belt-driven gantry, where the ball screw provides the fine positioning that the gantry cannot. Material handling and test equipment round out the list, including probe stations, load frames, and sample transfer mechanisms that must run unattended for thousands of cycles. You can review real installations on the Application Case page.

Within these applications, single-axis robots replace pneumatic cylinders whenever the process needs more than two positions, controlled acceleration, or measurable position feedback. A pneumatic slide gives speed but no profile control, and its cushioning changes with load and temperature. An electric linear module gives a repeatable motion profile, adjustable thrust, and a position value that the PLC can verify. That verification is increasingly important in regulated industries, where a rejected part must be traceable to a station and a cycle. Energy consumption is another factor, since a servo axis draws power mainly during acceleration, while a compressor runs continuously to feed every cylinder on the line. For machine builders, the practical outcome is fewer moving parts, less tubing, and a cleaner electrical panel.

Selection begins with payload, and payload must be calculated at the centre of gravity rather than at the mounting face. The relevant values are the mass of the tool and workpiece, the offset of that mass from the carriage, and the resulting moment in pitch, yaw, and roll. SIKETE publishes allowable moment figures for each carriage, and exceeding them shortens guide life long before the axis fails outright. Stroke should be chosen so the working envelope sits inside the travel rather than at the mechanical ends, leaving room for limit sensors and deceleration. Speed follows from the required cycle time divided by the move distance, but acceleration is usually the binding constraint because it drives both thrust and structural vibration. Repeatability, not accuracy, is the number that matters for most pick-and-place duties, and it should be specified with a clear measurement method.

Environment and control requirements complete the picture. Clean-room, washdown, dusty, and high-temperature cells each change the sealing, lubrication, and motor protection specified for single-axis robots. Vertical mounting requires a brake or a self-locking screw, and it changes the way the load is presented to the guide. On the control side, buyers must decide between a dedicated single-axis controller, a PLC pulse output, or a fieldbus drive on EtherCAT, PROFINET, or Modbus. Accessories such as cable carriers, limit and home sensors, bellows, and mounting brackets should be ordered with the axis so the assembly is complete on arrival. Requesting CAD data and a technical consultation early avoids the familiar situation where the axis arrives and the bracket does not fit. Our engineers can run the calculation with you through the CONTACT page.

Every SIKETE series is documented with a feature catalogue that lists dimensions, allowable loads, moments, stroke ranges, screw leads, and maximum speed for each model. Specification tables are paired with motor mounting drawings so the drive package can be confirmed before the order is released. Controller documentation covers wiring, tuning, and the parameter set required for each move profile, which shortens commissioning on site. CAD data is provided in the common neutral formats used by mechanical design teams, along with step files for the motor and coupling so the assembly can be checked for interference. Operation manuals include lubrication intervals, seal replacement procedures, and a troubleshooting section covering the faults most often seen in the field. For a company overview and manufacturing background, see the ABOUT page and the VIDEO section.

The fastest way to buy is to send your duty cycle, payload, stroke, and control preference to the SIKETE sales team, who will return a configured model number with pricing and delivery. Customisation requests are reviewed by application engineers rather than handled as order entry, so unusual mounting or sealing requirements are resolved before quoting. Sample units are available for design validation, and small trial quantities can be supplied ahead of a production release. Volume pricing, scheduled deliveries, and consignment arrangements are available for OEM programmes that run for several years. Spare parts and replacement motors are stocked for the life of each series. Whether you are building a single test rig or a hundred machines, the process starts with a specification, not a catalogue number.

ZHEJIANG SIKETE TECHNOLOGY CO., LTD. supports customers worldwide through a sales and application engineering team that handles specification, quotation, and after-sales service. Inquiries are answered within one business day, and technical questions are routed directly to engineers who work with these products daily. The company has delivered more than 1,750 projects to over 5,000 customers since 2011, and that installed base informs the advice you receive on selection. Visit the HOME page for an overview of the full automation range, or the NEWS page for exhibition and product updates. Contact details, a map, and a detailed 26-question FAQ are available on the support page. Send your application details today and let the team recommend the right single-axis robots for your machine.

Single-axis robots provide programmable linear motion for assembly, inspection, dispensing, pick-and-place, and material handling duties. They replace pneumatic cylinders wherever more than two positions, controlled acceleration, or position feedback are needed. Most machines use them as a Z axis under a gantry or as a standalone transfer slide.

Choose a ball screw axis when precision, thrust, and repeatability matter more than raw speed. Choose a belt-driven axis when the stroke is long, the cycle time is short, and cost per metre of travel is the deciding factor. Many gantries combine both, using belts for the long horizontal axes and a ball screw for the vertical axis.

Standard ball screw models cover strokes up to around three metres with supported screws, and belt-driven units extend considerably further. Longer travels are normally built as joined axes or as rack-and-pinion systems. Stroke should always be specified with margin at both ends for sensors and deceleration.

Axes are available with AC servo motors, stepper motors, and belt-driven configurations without a screw. Servo versions support closed-loop control, torque limiting, and following-error monitoring for demanding motion profiles. Stepper versions suit simple indexing where a fixed move profile is sufficient.

Payload must be assessed at the centre of gravity of the tool and workpiece, not at the mounting face. Check the resulting pitch, yaw, and roll moments against the published allowable values for the carriage. Overhung loads reduce the practical payload well below the headline figure.

Yes, vertical mounting is common for Z axes and lift stations. A motor brake or a self-locking screw lead is required so the carriage cannot fall when power is removed. Vertical orientation also changes the load direction on the guide and should be confirmed during selection.

Ball screw single-axis robots typically achieve repeatability in the range of a few hundredths of a millimetre, depending on screw grade and guide preload. Belt-driven models are less precise but still highly repeatable over long strokes. Repeatability and accuracy are different values and should be specified separately.

Maintenance is mainly periodic re-greasing at an interval defined by duty cycle and environment. Seals, wipers, and bellows should be inspected at the same time and replaced if damaged. There is no routine overhaul interval for the guide or screw under normal operating conditions.

CAD models, dimensional drawings, and controller documentation are supplied for design review before ordering. Controllers can be bundled with the axis and pre-configured for the ordered motor and stroke. Fieldbus drives are available for EtherCAT, PROFINET, and Modbus networks.

Send your payload, stroke, speed, repeatability target, mounting orientation, and control preference to the sales team. An application engineer will confirm the model, options, and accessories, then issue pricing with a delivery date. Sample units can be arranged for validation before a production order.