Carriage plates are usually 400-1500 mm aluminum plate, 15-40 mm thick, with guideways or racks mounted on both faces.

• Losing the datum on the flip — after the first face is milled and the part is flipped, setting on blocks lets parallelism drift with block accuracy. We machine a process boss or datum edge first, locate on it after flipping, and hold 0.01 mm.
• Machining Stress Release — removing surface material makes the plate warp. Rough machining, stress relief, semi-finishing then finishing gives two stress releases, so the part does not distort a week after delivery.
• Anodizing film thickness — 25-40 µm of hard anodizing changes rail mounting face height, so we pre-machine for film thickness or mask the faces, and no shims are needed at assembly.
• Long distance hole spacing — cumulative error along the rail mounting holes ±0.03 mm, verified by laser interferometer or long-stroke CMM sampling.

Floor rails differ in length, guideway brand and drive type, so the carriage plate is built to the machine interface.

• Length Customization — 400 mm to 1500 mm; beyond that the parts are spliced in sections with joint locating pins.
• Guideway matching — machined to HIWIN / THK / Rexroth hole patterns so the part bolts straight on.
• Drive Type — rack and pinion, ball screw or linear motor; mounting faces and clearance slots reserved for the chosen concept.
• Reinforced Structure — ribs or honeycomb pockets on the back balance stiffness and inertia.

The drawings of a complete robot builder are often the core competitiveness of the next machine generation. We apply both physical and data isolation on a per-project basis.

• NDA First — mutual NDA and non-circumvention agreement signed before drawings are received.
• Isolated Secure Area — dedicated machines and staff, no photography and no phones inside the area.
• Not displayed — drawings, part photos and customer logos never enter sample cabinets, catalogs, the website or social media.
• Data Isolation — programs and models sit on an access-controlled server, destroyed at project end with a written record.
• Code-named — traveler cards and packaging labels use internal codes instead of customer part numbers.

Dongguan Changxinda Precision Technology Co., Ltd.Founded in 2008, with a team of 90-102 staff, serving 200+ Customers, export share 50-60%, annual sales of USD 10-20 million, ISO 9001:2015 certified.

Structural parts for robots come one shape per part, and no hand fitting is allowed at assembly. We therefore keep 5-axis machining, stress relief, surface treatment and CMM inspection under one roof, so every part's geometric tolerance is closed internally instead of being sorted out on the customer's line.

• Reserved Capacity — machine time is locked weekly for volume programs, so rush orders never displace batch schedules.
• Two shifts, six days a week — production runs 07:30-22:00, with weekend shifts added in peak season.
• Buffer Stock — semi-finished stock is held for repeat specifications, cutting repeat order lead time by about 30%.
• Visible Progress — weekly progress sheet plus shop floor photos, tracking number issued at shipment.
• Shipping — samples by express in 3-5 days, volume by air or sea, EXW / FOB Shenzhen / CIF.