ZP321R 100° 4 inch Heavy Duty Grinder
The ZP321R 100° 4 inch Heavy Duty Grinder is engineered for precision grinding, cutting, and finishing where power and accessibility are equally critical. Featuring a 100° angled head and compact 4-inch wheel capacity, this grinder is ideal for working in tight spaces while still delivering the durability and performance needed in heavy-duty industrial environments.
Key Features
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100° Angled Head – Provides enhanced visibility and accessibility in confined work areas.
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4 Inch Wheel Capacity – Compact and maneuverable for precision tasks.
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Heavy-Duty Pneumatic Motor – Reliable power for continuous grinding, cutting, and surface prep.
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Industrial-Grade Housing – Rugged construction ensures long service life.
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Rear Exhaust System – Directs air away from the operator for safer, cleaner operation.
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Low Vibration & Ergonomic Design – Increases operator comfort and reduces fatigue.
Benefits
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Compact Power – Smaller 4″ wheel size is ideal for precision and control in tight spaces.
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Built to Last – Our heavy-duty design withstands industrial use in demanding environments.
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Operator-Friendly – Lightweight and ergonomic for extended shifts.
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Versatile Use – Suited for grinding, deburring, and cutting on various materials.
Applications
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Metal Fabrication – Deburring, weld seam grinding, and finishing.
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Shipbuilding & Offshore – Compact design for tight working environments.
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Automotive Maintenance – Ideal for minor part repair and fabrication.
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Construction & Manufacturing – Daily heavy-duty grinding in industrial settings.
Why Choose the ZP321R 100° 4 inch Grinder?
The ZP321R is the most compact grinder in the ZP32 Series, featuring a 100° head design for easy access and a 4-inch wheel for precise grinding tasks. Its rugged build and ergonomic design make it the perfect choice for professionals who need both power and maneuverability.


- Ergonomic Grip Handle
- Swivel SideExhaust
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| ZBT80541 5″ Disc Wheel 5″x1/4″x7/8″ |
Specification:
- Spindle Thread: 3/8″-24, M10x1.5
- Grinding Wheel: 4″
- Net Weight: 3.1(1.4) Ibs(kg)
- Length: 8.2(210) inch(mm)
- rpm: 10000
- Air Inlet: 1/4 inch
- Min.Hose Size: 3/8(10) inch(mm)
- Avg. Air Cons.: 3.5 cfm
| Model | Spindle Thread |
Grinding Wheel |
Net Weight lbs(kgs) |
Length inch(mm) |
rpm | Air Inlet inch |
MinchHose Size inch(mm) |
Avg. Air Cons. cfm |
| ZP321R | 3/8″-24, M10x1.5 | 4″ | 3.1(1.4) | 8.2(210) | 10000 | 1/4 | 3/8(10) | 3.5 |
| ZP322R | 5/8″-11, M14x2 | 4-1/2″ | 3.1(1.4) | 8.2(210) | 10000 | 1/4 | 3/8(10) | 3.5 |
| ZP323R | 5/8″-11, M14x2 | 5″ | 3.1(1.4) | 8.2(210) | 10000 | 1/4 | 3/8(10) | 3.5 |
| ZAG-965R | 3/8″-24, M10x1.5 | 4″ | 4(1.8) | 9(230) | 11000 | 1/4 | 3/8(10) | 3.8 |
| ZAG-9656R | 5/8″-11, M14x2 | 4-1/2″ | 4(1.8) | 9(230) | 11000 | 1/4 | 3/8(10) | 3.8 |
| ZAG-966R | 5/8″-11, M14x2 | 5″ | 4(1.8) | 9(230) | 11000 | 1/4 | 3/8(10) | 3.8 |
| ZAG-966C | 5/8″-11, M14x2 | 5″ | 4(1.8) | 9(230) | 11000 | 1/4 | 3/8(10) | 3.8 |



