Is Your Base Actually Granite or Just Painted Marble?
We see this all the time in metrology labs. A supplier sells you a cheap base, and six months later, your CMM starts drifting. The culprit is usually low-density marble that absorbs moisture and warps. We strictly use ZHHIMG® black granite with a density of ≈3100kg/m³. This density means zero moisture absorption and absolute dimensional stability.
How Thick Should Your Base Really Be?
Thin bases vibrate. Period. When you are measuring tolerances in microns, a passing forklift can ruin your day. Our granite bases are engineered with massive thickness to dampen those vibrations instantly. We don’t cut corners on weight because heavy bases mean stable measurements. Your operators will notice the difference immediately.
Thin bases vibrate. Period. When you are measuring tolerances in microns, a passing forklift can ruin your day. Our granite bases are engineered with massive thickness to dampen those vibrations instantly. We don’t cut corners on weight because heavy bases mean stable measurements. Your operators will notice the difference immediately.
Why Do We Insist on Manual Grinding?
Machines are great, but they lack intuition. Our master grinders have over 30 years of experience. They can literally feel a 2-micron high spot through their fingertips. We call them “walking electronic levels.” They hand-finish the surface before our Renishaw laser interferometer even touches it. That’s how we guarantee Grade 00 accuracy.
Machines are great, but they lack intuition. Our master grinders have over 30 years of experience. They can literally feel a 2-micron high spot through their fingertips. We call them “walking electronic levels.” They hand-finish the surface before our Renishaw laser interferometer even touches it. That’s how we guarantee Grade 00 accuracy.
What Happens If You Choose the Wrong Material?
You get false readings, scrapped parts, and angry customers. Don’t let a cheap base destroy your quality control. We promise no cheating and no misleading. You get real, high-density black granite that stays flat forever.
You get false readings, scrapped parts, and angry customers. Don’t let a cheap base destroy your quality control. We promise no cheating and no misleading. You get real, high-density black granite that stays flat forever.
Frequently Asked Questions (FAQ)
1. How do I know if my current base is failing?
Check your daily calibration logs. If you see a slow, consistent drift in your Z-axis or flatness over a few weeks, your base might be warping due to temperature or humidity changes.
Check your daily calibration logs. If you see a slow, consistent drift in your Z-axis or flatness over a few weeks, your base might be warping due to temperature or humidity changes.
2. Can you retrofit a new granite base to our old CMM?
Absolutely. We custom machine bases to fit legacy machines. Just send us the mounting hole CAD file, and we’ll build a rock-solid foundation for your existing equipment.
Absolutely. We custom machine bases to fit legacy machines. Just send us the mounting hole CAD file, and we’ll build a rock-solid foundation for your existing equipment.
3. Does high-density granite require special maintenance?
Not really. Just keep it clean and avoid hitting it with steel tools. A simple wipe with isopropyl alcohol keeps the surface pristine. It’s naturally rust-proof and non-magnetic.
Not really. Just keep it clean and avoid hitting it with steel tools. A simple wipe with isopropyl alcohol keeps the surface pristine. It’s naturally rust-proof and non-magnetic.
4. How often should we recalibrate the granite base?
We recommend an annual check. Since our granite is so stable, it rarely goes out of spec, but a quick verification with a laser interferometer gives you peace of mind for ISO audits.
We recommend an annual check. Since our granite is so stable, it rarely goes out of spec, but a quick verification with a laser interferometer gives you peace of mind for ISO audits.
5. Why is your density ≈3100kg/m³ better than standard granite?
Standard grey granite is usually around 2700kg/m³. Our 3100kg/m³ black granite has a tighter crystalline structure. This translates to better wear resistance against probe tips and superior vibration damping.
Standard grey granite is usually around 2700kg/m³. Our 3100kg/m³ black granite has a tighter crystalline structure. This translates to better wear resistance against probe tips and superior vibration damping.
6. Do you ship internationally without damage?
Yes. We use custom wooden crates with heavy-duty foam suspension. The granite is completely isolated from shock. We’ve shipped to Germany and Singapore with zero damage reports.
Post time: Jun-16-2026