The ATK-MKQ series is a CNC ball grinding 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 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.
- Confirm the selected model against your drawings and target ball size.
Catalog-derived specifications
Use this specification table to compare the machine family. Confirm the selected model, drawing, material, fixtures, voltage and process requirements before ordering.
| 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 |
Source and specification boundary
Source basis: Technical catalog reference reviewed by AMY CNC on 2026-07-14. Catalog values are planning references and must be confirmed against the workpiece drawing and final quotation.
The mapped technical catalog page supports CNC valve-ball grinding. It does not establish a lapping process; any lapping requirement must be reviewed and confirmed separately.
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 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 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 prepare OEM documentation and nameplate requirements?
Discuss nameplate and documentation requirements with our factory before quotation. Record the agreed configuration, service scope and any required compliance documents in the order.
How should buyers use the specification table?
Use the specification table to compare model size, workpiece range and utilities. Confirm the selected model, fixture, tooling, accuracy and acceptance criteria against your drawing before ordering.
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.
Related grinding and lapping selection resources
Compare the wider machine category before reviewing the model-specific RFQ data needed for quotation.