H3 Machine Verification

Device description:

1. The body and components are cast by Milhanna high grade cast iron FC30, which is artificially normalized heat treatment and then treated by natural aging. Components are processed by YASDA, MITSUI SEIKI, TOSHIBA, ELB and other world-class equipment once clamping processing. Precision size can be up to micron level, to ensure high precision equipment basic components.


2. Machine guide rails and precision ball screws are continuously lubricated by automatic lubrication system to ensure longer service life and accuracy. The cooling system is separated from the body to eliminate vibration and favorable heat dissipation.

3.Equipped with Siemens 828D CNC automatic grinding system, and secondary development, man-machine dialogue fool operation, with many optional equipment to choose from, including inner hole grinding device, automatic end measuring device, automatic outside diameter measuring device, etc.

4. The grinding feed system is composed of a V and a flat track of hand-crafted precision shovel, with automatic lubrication system and C3 level precision grinding ball screw, which can achieve smooth movement, excellent repeated positioning accuracy and long track life.

5. The standard configuration of the grinding wheel spindle is rear four and rear two bearing structure. High precision dynamic and static pressure spindle can also be selected, which has the characteristics of high rotation precision, high dynamic stiffness, good vibration resistance, high grinding efficiency and good grinding surface quality. For special work-piece grinding, the grinding wheel speed can be adjusted, up to 3500 RPM and 60m/s.

6. The tail seat is designed to be both rigid and robust. A hardened alloy steel sliding cylinder encrusted in the cast iron body is designed to carry the MT4 top core. The jacking force of the sliding cylinder can be easily changed by adjustment knobs at the rear. Special accessories oil pressure tail seat with a pedal to facilitate unloading work parts.

7.Siemens numerical control system as the standard configuration, after secondary development, all Chinese operation interface, easy to use. Equipped with Siemens high performance servo motor, the equipment CNC system and drive system have better compatibility, at the same time with automatic sand repair and automatic compensation function, to ensure the stability and precision of feed and grinding.

Technical specification:

Machine Verification:

1. Verification preparation:

(1)The customer must provide the part, the part drawing and the requirements, before signing the contract and the technical agreement.

(2) The machine supplier is responsible to keep the confidentiality of the part and technical documents provided by the customer.

(3) The machine supplier notices the customer the time of machine verification, 10 days in advance, and then the customer posts 30 pieces of parts to the supplier, or the customer carries the parts (30 pieces) to the verification site in some special case.

(4)The machine supplier gets ready for the verification, before the customer arrives the verification site.

(5)The machine supplier determines the parameters of the grinding wheel based on the part drawings provided by the customer. And provides the grinding wheel after contract signature.

2. Verification contents: the agreements reached by both the customer and the supplier.

Verification standards: the part drawings provided by the customer.

Machine appearance inspection.

Convenience of machine operation and maintenance (based on the machine design)

Grinding quality (based on the grinding precision report)

Machine operating record on site (speed, load, time, process, etc)

Machine main performances record on site.

Main components inspection record and assembly record verification.

Main components confirmation.

Grind 30 pieces of parts continuously. The results can meet the drawing requirements,
and the grinder is OK.

After grinding, both the NG parts and the OK parts can be shipped back to the customer, or
back together with the machine.

3. During the verification, the customer has the right to put forward the reasonable suggestion for machine improvement. And the supplier will do the relative improvement after the bilateral agreement.

4. When the verification is finished and the customer signs the verification document, the supplier will deliver the machine to the customer.

Guangdong Hotman Machine Tool Co., LTD. (hereinafter referred to as "Hotman") is honored by the state as a high-tech enterprise, a state-level specialized and innovative "little giant", and one of the top 100 innovative enterprises in Dongguan. The company was founded in 2003, after 20 years of research and development technology accumulation,Now the scale of the company has developed into the most comprehensive series of grinding machine listed enterprises in China, product line distribution, centerless grinding machine, cylindrical grinding machine, internal grinding machine, universal grinding machine, camshaft grinding machine, step down/chamfering grinding machine, Inserts grinding machine, micro grinding machine, guide surface grinding machine, vertical grinding machine and other series of grinding machines and CNC lathes.

Headquartered in Dongguan Houjie high-tech Industrial Zone, Henan Xinyang has two standardized production & assembly plants, the company has a total of more than 400 people, fully able to meet the needs of global customers' demand. Look forward to working with you happily.