Granite (marble) parallel gauge

Granite parallel gauge (marble parallel gauge) is mainly used for detecting parallelism and perpendicularity. The rock parallel gauge is suitable for industrial production and laboratory measurement work. Characteristics and advantages of granite parallel gauge: 1. Good rigidity, high hardness, and strong wear resistance.

paralells precision（Marble parallel gauge）Mainly used for detecting parallelism and perpendicularity.paralells precisionThe main mineral components are feldspar, plagioclase, a small amount of olivine, biotite, and trace magnetite. It has a black color, precise structure, and has undergone billions of years of aging. Its texture is uniform, stable, strong, and hard, and it can maintain high precision under heavy loads. Granite parallel gauges are suitable for industrial production and laboratory measurement work.
Characteristics and advantages of granite parallel gauge:
1. Good rigidity, high hardness, and strong wear resistance
2. After long-term aging, the rock has a uniform organizational structure, a small coefficient of expansion, complete disappearance of internal stress, and no deformation, resulting in high accuracy.
3. Not afraid of acid and alkali erosion, will not rust, does not need to be oiled, is not easy to stick to dust, maintenance free, easy to maintain, and has a long service life.
4. Non magnetized, able to move smoothly during measurement, without any sluggishness, unaffected by moisture, and with stable flatness.
5. No scratches will occur, not hindered by constant temperature conditions, and measurement accuracy can be maintained at room temperature.

paralells precision	Specification (mm)	Flatness of working face relative to parallelism of working face		Verticality between working faces		The difference in length between each pair of parallel gauges H.W
		Accuracy level μ m
		00	0	00	0	0	0
	160×25×16	1.5	3	20	40	1.5	3
	250×40×25	2	4	30	60	2	4
	400×63×40	4	8	40	580	4	8
	630×100×63	6	12	50	100	6	12