Incorporated in 1993, China Yuqize Tools Co., Ltd. is located in the coastal scenic city of Ningbo. As one of the largest valve grinder manufacturer and wholesaler in the power tools, air tools and pneumatic toolsindustry. We use CAD assistance system to design custom valve grinders products, adopt America made 38-channel vacuum spectrometer for product components analysis, and use British measuring system and ultrasonic flaw detector for finished product test and inspection. All our cheap valve grinder products are manufactured according to the standards ofGB/T15729-1995, GS, EMC, UL, CE and LCIE.

The Wood's Powr-Grip Valve Grinder provides an effective way to hold valves during lapping operations. The spring-loaded vacuum pump, built into the handle, provides a vacuum reserve for long-lasting hold and serves as a leakage indicator, to lessen unexpected release. A single stroke of the plunger attaches the vacuum pad firmly to the valve. When the pad has sealed properly, the plunger returns only part of the way. Further movement indicates leakage and the need to clean the pad face and valve head for a better seal. The LarsLap Model K valve grinder utilizes a conical cone that self centers onto the top of the valve’s flange. Three (3), angle segments 15-30-45 degree, are included which cover the standard valve sizes for globe valves. A guide fits into the bore below the valve seat in order to pilot the grinding of the valve seat. The guide assists as a fastening device for the adhesive grinding paper.

The Valve Grinder's design and construction assure long service: The one-piece handle is made of a material resistant to grease and the corrosives normally associated with gasoline engine repair, while the vacuum pads are molded from tough, durable rubber. Three sizes of pads are available to cover most small engine and automotive valves. The set comes in a see-through, easy-to-hang package that makes it easy to find when you need it. Reciprocating, advancing movement ensures even grind. Complete with full set of bits, 1-5/16" vacuum cup, grinding spring. Replacement suction cup set available.The Model S-C’s grinding heads are reversible for 3 degree outside relief grinding. The grinding heads are sized for all standard gate and check valves from 1”-4”. and assembling work station that allows valves pneumatic extraction and its subsequent reassembly by blocking the cylinder head only once.

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