Machine Checking Squares (Frame Type) are made of high tensile cast iron, and used mainly for gauging, inspection, squareness testing and for checking three axis geometric accuracies of machine tools.
Features of Cast Iron Square Ruler:
• Made from high quality Cast Iron, casting duly stress relieved.
• Working surfaces and sides offered with hand-scrapped finish.
• Four working surfaces provided.
• Finer accuracies can also be achieved on request at extra cost.
• Normal packaging is plywood box, fine storing case provided on request at extra cost.
These features make HENGFENG one of the best Cast Iron Square Ruler manufacturers in the industry.
Material: HT200, HT250, HT300
Specification: see attached form or customize
Surface treatment: hand-scraped or finish-milling
Surface coating: working surface covered with pickling oil and non-working surface covered with antirust paint
Precision grade: 1-2
Packaging: plywood box / fine storing case
Warranty: 1 year
OEM or ODM Service: we offer a wide range of services from standard Cast Iron Square Rulers to custom order as per request.
Calibration Certificate: EX-works inspection reports offered by our Quality Inspection Department are included with every surface plate, “Calibration Certificate” is available upon request for an additional charge.
Delivery Costs: calculated during the checkout process.
Standard Size Availabble
| No. | Size L x B x H(mm) | Flatness | Squareness | Parallelism | |||||
| Precision Degree (μm) | |||||||||
| GR “1” | GR “2” | GR “3” | GR “1” | GR “”2 | GR “3” | ||||
| 1 | 200×200×30 | 8 | 16 | 3 | 6 | 8 | 16 | ||
| 2 | 250×250×30 | 9 | 18 | 8 | 8 | 9 | 18 | ||
| 3 | 300×300×30 | 10 | 20 | 9 | 9 | 10 | 20 | ||
| 4 | 400×400×40 | 12 | 24 | 10 | 10 | 12 | 24 | ||
| 5 | 500×500×50 | 14 | 28 | 12 | 12 | 14 | 28 | ||
| 6 | 600×600×50 | 16 | 32 | 14 | 14 | 16 | 32 | ||
*Other sizes and types can be manufactured as per requirement.
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