Precision Granite Coordinate Measuring Machine (CMM) Frame

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Don’t let an unstable base compromise your quality control. Let’s engineer a granite foundation that lasts a lifetime.

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Engineered for Zero-Defect Metrology: The Foundation of Absolute Precision

When you are operating at the nanometer level, your machine’s frame is everything. The slightest thermal drift or mechanical vibration can compromise your inspection data. This Custom Granite CMM Frame is not just a base; it is a high-performance structural foundation designed to maintain dimensional stability in the most demanding industrial environments.

Machined from premium, fine-grain natural granite (typically sourced from stable geological formations like Jinan Black Granite), this component features a rigid, rectangular hollow bridge structure. The material’s exceptional damping properties, high hardness, and low thermal expansion coefficient make it the undisputed choice for high-precision measuring equipment, optical inspection platforms, and semiconductor manufacturing fixtures. Whether you are building a new Coordinate Measuring Machine (CMM), a surface profiler, or a vibration-isolated optical bench, this granite frame delivers the unwavering stability your critical measurements demand.

Overview

Model	Details	Model	Details
Size	Custom	Application	CNC, Laser, CMM...
Condition	New	After-sales Service	Online supports, Onsite supports
Origin	Jinan City	Material	Black Granite
Color	Black / Grade 1	Brand	ZHHIMG
Precision	0.001mm	Weight	≈3.05g/cm³
Standard	DIN/ GB/ JIS...	Warranty	1year
Packing	Export Plywood CASE	After Warranty Service	Video technical support, Online support, Spare parts, Field mai
Payment	T/T, L/C...	Certificates	Inspection Reports/ Quality Certificate
Keyword	Granite Machine Base; Granite Mechanical Components; Granite Machine Parts; Precision Granite	Certification	CE, GS, ISO, SGS, TUV...
Delivery	EXW; FOB; CIF; CFR; DDU; CPT...	Drawings’ format	CAD; STEP; PDF...

Real-World Application Scenarios

• Coordinate Measuring Machines (CMMs): As the base and bridge of a CMM, this frame ensures the Y-axis and X-axis travel paths remain perfectly perpendicular and flat over a 24/7 production cycle.
• Semiconductor Inspection Equipment: In cleanrooms where thermal management is critical, our granite frames provide the ultra-stable platform required for wafer inspection and chip manufacturing tools.
• Laser and Optical Bench Testing: For R&D labs requiring absolute stillness, our granite base acts as an anti-vibration foundation for sensitive interferometers, microscopes, and laser calibration tools.
• Automotive and Aerospace Quality Control: Used as custom inspection fixtures for checking turbine blades, engine blocks, and transmission housings where tolerance stacking is unacceptable.

Quality Control

We use various techniques during this process:

● Optical measurements with autocollimators

● Laser interferometers and laser trackers

● Electronic inclination levels (precision spirit levels)

Quality Control

1. Documents together with products: Inspection reports + Calibration reports(measuring devices) + Quality Certificate + Invoice + Packing List + Contract + Bill of Lading(or AWB).

2. Special Export Plywood Case: Export fumigation-free wooden box.

3. Delivery:

Ship	Qingdao port	Shenzhen port	TianJin port	Shanghai port	...
Train	XiAn Station	Zhengzhou Station	Qingdao	...
Air	Qingdao Airport	Beijing Airport	Shanghai Airport	Guangzhou	...
Express	DHL	TNT	Fedex	UPS	...

FAQ

Q: Why use granite instead of steel or aluminum for a CMM base?
A: While metals are strong, granite offers superior vibration damping (15x greater than steel) and significantly lower thermal expansion. A granite base ensures your measurement machine doesn't introduce its own errors due to temperature changes or motor vibrations, resulting in higher confidence in your inspection data.

Q: Can you manufacture this based on our custom CAD drawings?
A: Absolutely. We specialize in custom granite machining. Simply provide your 2D DXF files or 3D STEP/IGES files, and we can manufacture the frame to your exact geometric requirements, including complex cutouts, blind holes, and precision-ground reference faces.

Q: What is the maximum size you can manufacture?
A: Our workshop can handle very large granite castings and machined components. Whether you need a small 200mm optical block or a massive 3-meter long CMM bed, we have the equipment to handle it.

Q: How do you ensure flatness during machining?
A: We use a multi-step process: initial rough cutting, semi-precision milling, and final lapping/polishing against calibrated master reference plates. We can provide a flatness inspection report with every order.

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QUALITY CONTROL

If you can’t measure something, you can’t understand it!

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If you can’t control it, you can’t improve it!

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