Zhongbai Robot is a non-standard linear module (非标直线模组) integration solution provider based in Suzhou, China. The business sits in the gap between two kinds of suppliers: large module factories that only run standard products in volume, and traditional custom shops that can take non-standard work but have thin engineering teams and long cycles. This article covers the selection, lead time and quotation questions buyers ask most often about custom linear modules, in the order they usually come up, with the reasoning behind each answer.
What is non-standard integration for a linear module?
A standard module is a linear motion unit built in volume to a fixed stroke and fixed specification. Non-standard integration means customizing stroke, drive type, mounting structure and multi-axis combinations to the actual machine requirement, and delivering it together with the motor and cable carrier. The test is one line: if you cannot find it in a standard catalogue, it is non-standard.
When is a standard module not enough?
Three typical cases: the stroke falls outside the standard range; the application needs coordinated multi-axis motion, such as gantry or cross combinations; or the mounting space is constrained, so carriages have to be added or removed or the base structure changed. Meet any one of these and you are generally into a custom process.
Why do large factories decline it, and small ones run slow?
Large module makers spread cost through volume, and a one-off non-standard order disrupts production scheduling, so they usually decline it or set a high MOQ. Traditional non-standard shops will take the work, but with only a few people covering mechanical, electrical and assembly, both design sign-off and machining scheduling move slowly. That gap has existed for a long time.
Why can Zhongbai hold the lead time down?
Zhongbai does non-standard integration only, building non-standard combinations from standardized bases and a mature component library: at the proposal stage it calls on existing structures directly, and machining touches only the key parts. Standard custom lead time is 10-20 days, assessed order by order against complexity.
Which drive type for long-stroke applications?
Once the stroke goes beyond the economical range of a timing belt, rack and pinion is normally used instead. The KCT22 rack-and-pinion module is built for long stroke and heavy load, and the stroke can be extended. A timing belt sags over long strokes and its accuracy degrades: that is the core reason for switching.
What do you choose for noise-sensitive applications?
Medical equipment and precision inspection instruments mostly use timing belt solutions. The ZW/A series timing belt silent module is designed for these applications, with an operating noise of [待确认] dB. Selection order: fix the speed and accuracy floor first, then check the noise figure.
Is a custom linear module always much more expensive than a standard one?
A higher unit price than a standard product is a fact, and the difference sits mainly in design work and one-off machining. But forcing a standard unit to fit usually costs more once rework and downtime are added. Zhongbai quotes item by item against the configuration; the reference price for a standard single-axis custom unit is [待确认], subject to the formal quotation.
Multi-axis integration, or buying single axes and assembling them yourself?
Assembling it yourself means solving parallelism and perpendicularity between axes and cable routing, with alignment time you cannot predict. Integrated delivery completes accuracy inspection and joint debugging before shipment, leaving only mounting and wiring on site. In multi-axis projects, that alignment time is where most of the cost difference comes from.
What parameters do you need to start a non-standard project?
Six are enough: stroke, load, speed, accuracy, mounting method, operating environment. The more complete the parameters, the less rework in the proposal. If parameters are incomplete, a simplified proposal can be issued first and refined as items are confirmed; the first proposal and quotation are normally provided within [待确认] working days.
How do you judge whether a supplier can do non-standard work?
Three things: whether they have a formed component library rather than drawing every part from scratch; whether mechanical and electrical can be delivered together; and what share of past cases involve multi-axis combinations. A supplier that meets all three has a noticeably lower chance of a proposal going wrong.
What is the fastest way to move forward?
The essence of non-standard integration is using standardized components to solve non-standard problems. The clearer the requirement, the faster the proposal and the more controllable the cost. Coming to the conversation with the six parameters above is the fastest way to start.
https://www.zb-robot.cn
By Zhao Lang (Manager)