Granite Measuring Tools
The granite straightedge with lightening holes is crafted from premium Jinan black granite. With an accuracy reaching up to 0.001mm, it is primarily used for the assembly, installation, and inspection of machine tools. It is ideal for checking the verticality, parallelism, and straightness of guideways and precision components in ultra-precision industries and scientific research institutions.
| Item No. | Dimensions (mm) | Working surface straightness tolerance(µm) | Parallelism tolerance of upper and lower working surfaces (µm) | Perpendicularity of working surface to sides (µm) | |||||
| Length | Width | Height | Grade 00 | Grade 0 | Grade00 | Grade 0 | Grade 00 | Grade 0 | |
| ZHGSR-400 | 400 | 60 | 25 | 1.6 | 1.6 | 2.4 | 3.9 | 8.0 | 13.0 |
| ZHGSR-630 | 630 | 100 | 35 | 2.1 | 3.5 | 3.2 | 5.3 | 10.5 | 18.0 |
| ZHGSR-1000 | 1000 | 160 | 50 | 3.0 | 5.0 | 4.5 | 7.5 | 15.0 | 25.0 |
| ZHGSR-1600 | 1600 | 250 | 80 | 4.4 | 7.4 | 6.6 | 11.1 | 22.0 | 37.0 |
If you have special requirements, we can make granite straight ruler with length≤ 2000mm reach 0.001mm.
1. The granite is after a long-term natural aging, the organizational structure is uniform, the expansion cofficient is small, the internal stress completely disappeared.
2. Not afraid of acid and alkali corrosion, will not rust; do not need oiling, easy to maintain, long service life.
3. Not limited by the constant temperature conditions, and can maintain the high precision at room temperature.
No be magnetized, and can move smoothly while measuring, no tight feeling, free of the affect of moisture, good flatness.
We use various techniques during this process:
● Optical measurements with autocollimators
● Laser interferometers and laser trackers
● Electronic inclination levels (precision spirit levels)
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 |
... |
1. We will offer technical supports for assembly, adjustment, maintain.
2. Offering the manufacturing &inspection videos from selecting material to delivery, and customers can control and know every detail at anytime anywhere.
QUALITY CONTROL
If you can’t measure something, you can’t understand it!
If you can’t understand it.you cant control it!
If you can’t control it, you can’t improve it!
More information please click here: ZHONGHUI QC
ZhongHui IM, your partner of metrology, help you succeed easily.
Our Certificates & Patents:
ISO 9001, ISO45001, ISO14001, CE, AAA Integrity Certificate， AAA-level enterprise credit certificate…
Certificates and Patents are an expression of a company’s strength. It’s society’s recognition of the company.
More certificates please click here: Innovation & Technologies – ZHONGHUI INTELLIGENT MANUFACTURING (JINAN) GROUP CO., LTD (zhhimg.com)
