The ATK-MKQ series is a CNC ball grinding and lapping machine family for valve ball production. Catalog data covers 2 to 64 inch valve balls, CNC-controlled grinding, high worktable load options, and batch-production use for stainless steel, alloy, coated, and hard-facing valve balls.



What is this machine used for?
The ATK-MKQ series is a CNC ball grinding and lapping machine family for valve ball production. Catalog data covers 2 to 64 inch valve balls, CNC-controlled grinding, high worktable load options, and batch-production use for stainless steel, alloy, coated, and hard-facing valve balls.
Key machine features
- CNC-controlled forming and grinding process with programmed grinding cycles.
- Catalog-stated ATK-MKQ150 through ATK-MKQ1600 model range.
- Ball size range from 2-6 inches up to 40-64 inches depending on model.
- Designed for batch production of valve balls in stainless steel, alloy, coated, hard-facing, and ceramic-related material contexts.
- Use as a model-family page first; confirm each final model selection against drawings and target ball size.
Catalog-derived specifications
The table below presents catalog-derived data as crawlable HTML so buyers can compare the machine family before confirming final model selection, drawings, material, fixtures, voltage, and process requirements.
| Specification | Unit | ATK-MKQ150 | ATK-MKQ250 | ATK-MKQ400 | ATK-MKQ500 | ATK-MKQ800 | ATK-MKQ1050 | ATK-MKQ1200 | ATK-MKQ1400 | ATK-MKQ1600 |
|---|---|---|---|---|---|---|---|---|---|---|
| Ball size | in | 2-6 | 4-10 | 8-16 | 10-12 | 18-32 | 20-42 | 30-48 | 32-56 | 40-64 |
| Ball inner diameter | mm | DN25-150 | DN100-250 | DN200-400 | DN250-500 | DN450-800 | DN500-1050 | DN750-1200 | DN800-1400 | DN1000-1600 |
| Ball outer diameter | mm | 30-200 | 150-400 | 300-600 | 400-800 | 650-1200 | 800-1600 | 1100-1800 | 1200-2100 | 1500-2400 |
| Maximum worktable load | kg | 200 | 400 | 1000 | 2000 | 4000 | 10000 | 15000 | 20000 | 25000 |
| Grinding wheel motor power | kW | 4 | 7.5 | 11 | 15 | 22 | 30 | 30 | 37 | 37 |
| Grinding wheel max speed | rpm | 2500 | 2000 | 1500 | 1200 | 1000 | 800 | 800 | 700 | 500 |
| X/Z axis travel | mm | 200/250 | 250/250 | 250/250 | 400/400 | 450/450 | 500/500 | 550/550 | 500/500 | 500/500 |
| Repeat positioning accuracy | mm | +/-0.005 | +/-0.005 | +/-0.005 | +/-0.005 | +/-0.005 | +/-0.005 | +/-0.005 | +/-0.005 | +/-0.005 |
| Sphericity error | mm | <0.015 | <0.02 | <0.02 | <0.02 | <0.02 | <0.03 | <0.03 | <0.03 | <0.03 |
| Machine weight | t | 4 | 5 | 8 | 15 | 23 | 30 | 35 | 37 | 40 |
RFQ data buyers should prepare
- Workpiece drawings or photos with target dimensions.
- Valve type, valve size, material, and machining sequence.
- Required tolerance, surface finish, cycle target, and batch quantity.
- Voltage, available floor space, loading method, and automation preference.
- Any fixture, coolant, safety, packing, or local service requirement.
Buyer questions
What should buyers confirm before selecting the ATK-MKQ CNC Ball Grinding and Lapping Machine?
Confirm the workpiece drawing, valve size range, material, required accuracy, production rhythm, voltage, fixture requirement, and whether any automation or loading option is needed.
Which valve parts does this grinding and lapping machine support?
The catalog evidence supports valve balls in stainless steel, alloy, coated and hard-facing material contexts. Final scope should be checked against the buyer’s drawings and target machining sequence before quotation.
Can AMY CNC support private-label or OEM presentation?
AMY CNC can support approved private-label presentation for machine media and quotation documents. Final nameplate wording, documentation, configuration details, service scope, and any requested compliance evidence should be confirmed before production.
Why are parameters shown as an HTML table instead of an image?
Search engines and AI systems can read HTML tables more reliably than screenshots. Catalog images remain useful as supporting media, but the page should expose key specifications as crawlable text.
Next step
Send the workpiece drawing, target production rhythm, material, voltage, and preferred loading method. AMY CNC can map the requirement to a suitable machine family and prepare a technical quotation proposal.