Precision Machined Components for Test Fixtures, Inspection Equipment & Custom Machine Builders

We manufacture high-precision components for test fixtures, inspection equipment, metrology systems, and custom-built machinery — including fixture plates, locating pins, transfer fingers, sensor mounts, positioning blocks, and custom gauges. Trusted by machine builders and custom equipment manufacturers for precision-critical components.

Test Fixture, Inspection & Machine Building Manufacturing Capabilities

We deliver high-quality custom-machined components for test fixtures, inspection equipment, metrology systems, and custom machine building applications — fixture plates, locators, transfer fingers, sensor mounts, positioning blocks, and precision housings. We support machine builders and custom equipment manufacturers with reliable, high-precision components that meet demanding specifications. Every project follows our full quality-control workflow, from raw material incoming inspection through final dimensional verification. We machine a wide range of materials including aluminum alloys, stainless steels, tool steels, copper alloys, and engineering plastics — detailed material capabilities are listed below. With 3 CNC machining centers, wire EDM, surface grinders, and precision inspection equipment including Nikon projectors and TESA height gauges, we ensure consistent quality across every batch. No minimum order quantity — we treat every part with the same rigorous quality standards.

±0.01mm Precision

Critical dimensions held to ±0.01mm tolerance for precise fixture alignment and repeatability

Complex Geometries

Capable of machining intricate features — slots, holes, contours, and tight-tolerance mating surfaces

Full MES Traceability

Every part traceable to machine, operator, and inspection records via Heihu MES system

Typical Test Fixture & Inspection Components We Machine

1045 and Tunsten Carbideng Holder Technical Line Drawing With Silver Brazed Tungsten Carbide Fixture

Fixture

S235JR / 1045 + Tungsten Carbide

±0.05mm tolerance, silver brazed carbide tip

Workholding & positioning for inspection processes

Isometric clean line drawing of 1045 / S235JR precision locator positioning block, irregular L-shaped fixture component with U-shaped locating notch, multiple Φ6H7 & Φ3H7 precision mounting holes, machining tolerance ±0.02mm, used for high-precision alignment and positioning in test & inspection fixtures

Locator / Positioning Block

1045 / S235JR

±0.02mm, Φ6H7 / Φ3H7 precision holes

Precision alignment & positioning in test fixtures

Single isometric technical line drawing of 1055 steel holder for test fixture, material AISI 1055, chrome plating, high-frequency quenching HRC55, precision holes Φ6H7, tolerance ±0.02mm, finished dimension 37.6*60*61mm, clean outline includes mounting base, two large counterbore holes, side holes, chamfers and stepped faces, no surface texture, used for positioning and clamping in inspection fixtures

Holder / Clamping Holder

1050 / AISI1055

±0.02–0.03mm, hard chrome plating

Clamping & securing components in test equipment

Precision Housing

1.2375 HRC58

±0.02mm, ENP surface treatment

Sensor positioning & mounting in inspection systems

Our Test Fixture & Inspection Manufacturing Capabilities

Aluminum Alloys

6061-T6 · 2017 · 5052 · EN AW-2017 · 3.1325

Stainless Steel

SUS304 · SUS316L · 17-4PH · 1.4301 · 1.4305 · 1.4125 · 1.4021 · 440C

Tool & Die Steels

1.2379 · 1.2343 · 1.2344 · 1.2363 · 1.6511 · 1.6523 · 1.7335 · 1.7225 · 4140 · 1050 · S235JR · AISI1055 · 1045 · S45C · 1.121 · 50C · EN-GJL-250

Copper Alloys & Carbide

CuSn6 (Phosphor Bronze) · CuZn36Pb3 · Tungsten Carbide (WC, HRA 93) · BeCu

Engineering Plastics

POM· PEEK · PC · MC901

Our Equipment

3 CNC Centers · Wire EDM · 3 Surface Grinders · Large Surface Grinder · 3 Milling Machines · Tapping · Laser Marking

Inspection Equipment

Nikon Projector · Wanhao 2.5D CMM · TESA HITE 400 · TESA 700 · Nikon MFC 101A · Hardness Tester · Pin Gauges

Quality Assurance & Process Control

Dimensional Precision

Critical dimensions held to ±0.01mm tolerance, verified on Nikon profile projectors and TESA height gauges

Hardness Control

Heat treatment and hardness testing (HRC) performed per specification, verified on Rockwell hardness tester

Surface Quality

Surface finishes down to Ra 0.8μm or better, with precision grinding and deburring applied to every part

100% Inspection

Every critical dimension verified before shipment. Actual measured values are marked directly on the 2D drawings and shipped together with every order. Formal inspection reports can also be provided upon request.

Full Traceability

Every part traceable to machine, operator, and inspection records via Heihu MES system — from raw material through final shipment

Precision Component Expertise

Experienced in machining complex geometries, tight-tolerance features, and wear-resistant materials for test fixture and inspection applications

Case Study: Custom Transfer Fingers for Automated Test Handling Systems

Background

A test equipment manufacturer required custom transfer fingers for an automated test handling system — used to pick, transfer, and position electronic components during functional testing.

Challenge

  • Material: CuSn6 phosphor bronze / 1045 carbon steel (varied per application)

  • Tolerance: ±0.01mm on critical mounting holes and locating surfaces

  • Surface treatment: Tufftride (soft nitriding) for wear resistance

  • Dimensions: ranging from 60mm to 122mm in length

  • Quantity: Batch orders (multiple sizes and variations)

Our Solution

  • CNC precision machining on 3-axis centers

  • Surface finishing (Tufftride / black oxide) per customer requirements

  • 100% inspection on critical mounting dimensions via Nikon profile projector and TESA height gauge

  • Full traceability records via Heihu MES system

Result

  • All parts met dimensional specifications (±0.01mm tolerance achieved)

  • Surface treatments applied per specification for enhanced wear resistance

  • 100% on-time delivery

  • Customer placed repeat orders for multiple variations

Ready to Start Your Test Fixture, Inspection or Custom Machine Building Project?

Send us your 2D/3D drawings or share your requirements. We’ll provide a competitive quote within 24 hours — no MOQ, full MES traceability, and ±0.01mm precision guaranteed for fixture plates, locators, transfer fingers, sensor mounts, and all custom machine components.

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