A six-axis torque sensor computes force and torque from the micro-strain of an elastic body. A wedge-shaped gap of just 0.02 mm under the mounting face preloads the body when tightened, bringing zero drift and cross-talk; hole position error in turn puts extra bending load on the bolts.

• Both faces from one datum — both flange faces are machined in one clamping to 0.01 mm parallelism, with no second-setup alignment.
• Hole pattern drilled and reamed in one pass — bolt holes and pin holes are drilled and reamed from the same location, hole spacing ±0.02 mm to avoid assembly stress.
• Spigot coaxial with the bore — spigot to center bore coaxiality 0.01 mm keeps the sensor centered.
• Thread strength — aluminum thread depth is 1.5 times the bolt nominal diameter, with wire thread inserts added where pull-out is a risk.

Every robot end-effector and sensor interface is different, so we build to your assembly drawing and support revisions during sampling.

• Interface Customization — sensor maker flanges, robot wrist flanges and tool changer interfaces can all be matched.
• Hole Pattern Customization — bolt size (M3-M10), hole count, pin hole positions, counterbore or through-hole style freely defined.
• Lightweighting — unloaded zones are pocketed without hurting stiffness, cutting weight by more than 20%.
• Sampling Iteration — first article in 5-7 days, no extra development charge for revisions, up to 3 rounds of free tooling-level adjustments.

Confidentiality is enforced by contract, not by good intentions. An NDA can be signed before drawings are shared, and every step stays traceable.

• NDA First — mutual NDA plus non-circumvention terms; file transfer starts only after signing.
• Isolated Secure Area — access-controlled entry, no non-project staff, no photography inside.
• No Leakage — drawings, part photos and customer brands never enter sample cabinets, catalogs, the website or social media.
• Data Access Control — CAD files sit on an access-controlled server, isolated per project and destructible after delivery.
• Codified Routing — traveler cards and labels use internal codes instead of customer part numbers and project names.

Dongguan Changxinda Precision Technology Co., Ltd.Since 2008 we have been providing custom precision machining in Dongguan, 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.

Robot parts are judged by whether they assemble, not merely whether they can be made: a joint is a chain of flange, housing, link and bearing seat, and any out-of-tolerance part is amplified at the assembly end. That is why turning, milling, grinding and inspection all run inside one plant, keeping the tolerance chain closed internally instead of exposing it 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 for repeat models cuts repeat order lead time by 30%.
• Visible Progress — weekly progress sheet plus shop floor photos, tracking number provided at shipment.
• Shipping Methods — samples via DHL/FedEx/UPS in 3-5 days, volume by air or sea, EXW / FOB Shenzhen / CIF.