Product Specifications

Stuttgart SM12S Centerless Grinding Machine

Machine tool characteristics

1. organismThe machine structure is analyzed using finite element computer-aided analysis of natural frequencies to ensure optimal rigidity design for the entire machine,

The casting is made of HT300 cast iron, which has the best tensile strength, wear resistance, maximum damping rate, high service life, and high quality, and has undergone normalization heat treatment,
Furan resin sand mold casting, with reasonable mechanical design and excellent materials to ensure that it never deforms, is sturdy, and wear-resistant during use.

Each machine tool of Stuttgart is meticulously crafted by experienced craftsmen to ensure optimal straightness and flatness.


2spindleThe grinding wheel spindle, guide wheel, and spindle are made of Japanese material SNCM-220H and undergo carburizing heat treatment, followed by computer-controlled cryogenic treatment,
Surface hardness HRC62 ° or above, core hardness HRC25-30 °; precision grinding: coarse grinding, medium grinding, fine grinding, and then polished,
Ensuring ultra precision surface ensures that the spindle does not deform during use, improving spindle life and stability; The spindle bears strong torque,
High precision and long lifespan. The alloy bearing adopts a three-point dynamic pressure oil film system, with a floating main shaft and few contact surfaces with the alloy bearing,
Low temperature and depth ensure that each machine maintains consistent stability and accuracy after long-term operation.





3Adjust the wheel drive systemThe adjustment wheel spindle motor is driven by a high-performance servo motor made in Japan, providing accurate continuously variable speed,
No matter whether the spindle is running at high or low speed, there is no spindle stall problem, and the workpiece surface roughness is ensured to grind the best product. The motor transmission adopts a toothed timing belt,
Can reduce vibration and noise. The motor base is connected to the guide wheel head as a whole, and when adjusting the tilt of the wheel, the guide wheel transmission system also tilts, completely eliminating the problem of the belt pulley not being parallel to the belt and twisting.




4Sliding tableThe skateboard adopts a double ∧ - shaped sliding rail design, combined with a wedge-shaped guard rail, to ensure optimal stability while avoiding the intrusion of mud and dust;
The skateboard adopts a swallowtail design and can rotate around ± 5 °; There is a fine adjustment device for the upper and lower feed blades, and the feed adjustment can reach 0.001mm





5Repair deviceMade of high-grade cast iron FC-30, which has undergone heat treatment, precision grinding, and shaving processing; Specially designed hydraulic pressure conditioning system,
Cooperate with continuously variable speed to ensure smooth and straight maintenance; When grinding, the guide wheel dressing seat can rotate ± 5 ° according to the workpiece and needs,
Improve the contact between the workpiece and the guide wheel, increase the straightness and surface roughness of the workpiece during grinding, and increase efficiency.




6Spindle oil circulation systemThe grinding wheel spindle and oil pressure pump are interlocked for start-up. When the lubricating oil pressure wheel does not reach the limit data,
The spindle motor cannot start, so when the pressure is insufficient or the oil circuit fails, the pressure switch will automatically alarm, stop the spindle operation, and protect the spindle and alloy bearings from damage.
The oil temperature radiator can lower the temperature of the spindle lubricating oil, reduce thermal deformation, and extend the life of oil seals, alloy bearings, and spindles.



7Grinding accuracyAny high-precision centerless grinder must undergo strict grinding and testing by our company before leaving the factory,
To achieve the standards of true roundness and surface roughness, the centerless grinding machine is widely recognized and trusted by customers,
It should be attributed to our consistent adherence to strict quality requirements and our persistence and admiration for the grinding machine industry.


parameter

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project	JTM-1206
Grinding range (diameter)	Ф1mm-Ф40mm
Grinding wheel size (outer diameter x width x inner diameter)	Ф305x150xФ120mm
Adjust wheel size (outer diameter x width x inner diameter)	Ф205x150xФ90mm
Grinding wheel speed	1950R. P.M
Adjust wheel speed	0~320R. P.M
Grinding wheel drive motor	7.5HP
Adjust the wheel drive motor	2.0KW
Hydraulic pump drive motor	1HP
Cooling pump drive motor	1/8HP
Adjust the wheel feed scale	3.5mm/turn 0.02mm/scale
Adjust the wheel and fine tune the scale	0.1mm/rev 0.001mm/scale
Workbench feed scale	7mm/0.05mm/scale
Workbench fine-tuning scale	0.2mm/0.001mm/scale
Adjustment device feed scale	1.5mm/rev 0.01mm/scale
Adjust the tilt angle of the wheel	±5°
Adjust the rotation angle	±5°
mechanical dimensions	1800x1400x1450mm
packing dimensions	2350x1650x1770mm
mechanical weight	1750kgs
packing weight	1900kgs