6061 Aluminum Dual Clamp Bracket with 5-Axis Contoured Saddle and 0.02mm Saddle Fit for Precision Tube Mounting

A dual clamp bracket holds two tubes, rods or shafts in a fixed relationship. The load path runs through the saddle faces — so both saddles are machined from a single datum, not two separate set-ups. The result is a bracket that clamps evenly and repeats when you order again.

Saddle radius and position are measured against the tube it clamps. Both saddles share one machined datum, not two set-ups. Prototypes ship in 3–7 working days with no tooling charge.

Standards & compliance: ISO 9001:2015 · 6061-T6 / 7075-T6 billet · First article report with every shipment · Exporting since 2008.

If the two saddles are not cut from the same datum, the tubes sit at slightly different heights or angles, the clamp preload lands on one edge, and the assembly transmits vibration instead of damping it. Bolting the bracket down does not fix that — it only bends the bracket or crushes the tube.

So we machine the mounting base, the bolt pattern and both saddles from one billet in one setup where possible, or from a common datum with a single re-fixture where the geometry forces a second operation. The saddle radius is cut to your tube diameter with a controlled clearance band, and the saddle-to-saddle position is measured, not assumed.

Saddle clearance is quoted from your tube or rod diameter rather than from a nominal. Tell us the actual shaft size and whether the clamp needs to grip or merely locate, and the saddle is cut to give that contact. Where the tubes are commercial tolerance stock, a saddle cut to the nominal will either pinch or rattle — we size to the measured part instead.

• Material: 6061-T6 standard; 7075-T6 for higher clamp load; 5083 for welded assemblies; 304 stainless for corrosive or wash-down locations.
• Finish: clear, black or colour anodize 10–15 µm; hard anodize 25–50 µm on wear faces; bead blast before coating for matte; laser marking after coating.
• Geometry: dual saddle, single saddle, triple saddle, offset or stepped saddles, saddle with groove for an O-ring or rubber insert, split-leg clamp with bolt, flange base, slotted mounting holes for adjustment.
• Interface: metric or imperial bolt pattern, counterbore or countersink, dowel pin holes, keyway, threaded insert pocket.
• Size: 30 mm to 300 mm overall, saddle from 6 mm to 120 mm bore, leg thickness from 3 mm.
• Input: STEP, IGES, X_T, DXF, PDF drawing, or a sample bracket we measure and re-model.

A clamp drawing shows the geometry of your machine — tube spacing, bolt pattern, structural interface. We sign a mutual NDA before opening any file, in English or Chinese or on your own form, and return a countersigned copy before work starts.

Inside the plant only the project engineer, the CAM programmer and the cell supervisor have access; the file sits in a restricted folder rather than the open shop network. The cell is a camera-free area: no photographs, no video, no social posts, and no customer bracket kept on display or shown to another buyer as a sample. Subcontracting requires your written approval, and at program close drawings and inspection data are deleted or returned with written confirmation.

Dongguan Changxinda Precision Technology Co., Ltd has machined custom metal parts since 2008 — 15+ years, 90 to 100 staff, 50–60% of output exported to North America and Europe, 200+ customers served, turnover in the RMB 10–20 million band.

The plant runs 4-axis and 5-axis CNC machining centres, turn-mill combined lathes and CNC lathes under an ISO 9001:2015 quality system, with in-house milling, turning, finishing coordination and inspection. Billet machining, contour milling, anodize coordination and final inspection for your bracket all happen in our own plant in Dongguan.

Brackets and clamp hardware from this plant ship into ten sectors. The list is what customers actually order, not a marketing wish-list.

All ten sectors run through the same plant and the same ISO 9001:2015 inspection discipline — only the material, finish and documentation package change.

• Prototype: 3–7 working days after drawing approval including anodize; 10–12 days where a new fixture is required.
• Small batch 10–100 pcs: 7–14 working days.
• Repeat orders: released from archived program, fixture and anodize rack — no re-programming, no colour re-approval.
• Capacity: 10,000 pieces per month across the plant.
• Visibility: a dated progress note with photographs of your actual brackets at milling, anodize and inspection.
• Shipping: individually bagged, foam-lined export carton, express (DHL / FedEx / UPS) or air and sea per your forwarder.
• Rush: weekly overtime slots and an express anodize line held for line-down cases — give us the deadline and we confirm before the order.