ZDG-301L800 – 31-1/2-Inch Air Extension Die Grinder
The ZDG-301L800 Air Extension Die Grinder is a professional-grade air die grinder featuring an ultra-long 31-1/2-inch (800 mm) steel shaft designed for high-speed grinding and polishing in deep, hard-to-reach areas. Engineered with an aluminum alloy body and an ergonomic grip, this tool provides both precision and comfort in industrial environments.
Specifications
| Feature | Specification |
|---|---|
| Motor Power | 1 HP |
| Free Speed | 22,000 RPM |
| Collet Options | ¼″ (6 mm) and 3/8″ (8 mm) double-angle collet holders |
| Length | 31-1/2 in (943 mm) |
| Net Weight | 4.9 lbs (2.2 kg) |
| Air Inlet Size | ¼″ NPT/PT |
| Minimum Hose Size | ⅜″ (10 mm) |
| Air Consumption | Approximately 4.2 CFM |
| Exhaust | Rear exhaust |
| Grip & Controls | Comfort grip with streamlined safety lever |
| Construction | Durable aluminum alloy body |
Key Advantages
-
Extended Reach
With its long shaft, the ZDG-301L800 excels in accessing recessed machinery, engine compartments, molds, and internal components where standard grinders can’t reach. -
High-Speed Performance
Delivers 22,000 RPM to enable quick grinding and polishing while retaining procedural accuracy. -
Versatile Collet Compatibility
Accommodates both 6 mm and 8 mm grinding bits for a wide range of polishing and finishing applications. -
Ergonomic Design & Safety
Features a comfortable grip housing and a well-positioned safety lever for ease of operation and fatigue reduction. -
Cleaner Handling
Rear exhaust design diverts airflow away from the user’s hand for improved handling and work surface cleanliness.
Application Scenarios
Perfect for:
-
Automotive: polishing brake pad mounts, rotors, and inner body panels.
-
Industrial: cleaning molds, die interiors, and confined metal fabrication areas.
-
Machinery Maintenance: finishing internal engine or machine components with depth constraints.
Quick Model Comparison
| Model | RPM | Length | Weight | Ideal Use Case |
|---|---|---|---|---|
| ZDG-301L800 | 22,000 RPM | 31-1/2 in | 4.9 lbs | High-speed precision in hard-to-reach areas |
| ZDG-3076L800 | 3,500 RPM | 31-1/2 in | 5.5 lbs | Lower-speed grinding with more torque |
Why Choose the ZDG-301L800?
If your work involves deep cleaning, finishing, or polishing in narrow, confined environments, the ZDG-301L800 stands out as a top-tier tool. With its extended reach, powerful motor, and ergonomic features, it’s built to deliver precision and efficiency in demanding industrial tasks.
Benefits
- Industrial extended shaft long die grinder design for high-speed grinding& polishing in hard-to-reach areas
- By using 1/4″( 6mm) or 3/8″(8mm) Double Angle Collets, the die grinder can be used in a wide range of grinding and polishing applications with various wheels
- 4000rpm models are excellent for grinding applications with a flap sanding wheel
- High productivity
- Highest durability in demanding applications
Features
- 12″ (305 mm), 21-3/8″ (543 mm), 31-1/2″ (800 mm) extended body by Aluminum alloy structure.
- Comfort grip over-housing
- Streamlined safety lever
- Rear exhaust
- 1/4″ (6mm) & 3/8″ (8mm) industrial grade Double Angle collet holder
- 1.0 hp motor
- 22,000 rpm free speed models and 3,500 rpm free speed models
 |
|
| ZST-200E-29 6mm COLLET ZST-200E-29-1 1/4″ COLLET |
ZST-200E-29-2 8mm COLLET ZST-200E-29-4 3/8″ COLLET |
Specification:
- 1HP Die Grinders
- Collet size: 1/4(6) inch(mm)
- Net Weight: 4.9(2.2) Ibs(kg)
- Length: 37.1(943) inch(mm)
- rpm: 22000
- Air Inlet: 1/4 inch
- Min.Hose Size: 3/8(10) inch(mm)
- Avg. Air Cons.: 4.2 cfm
* The length of the extended body can be customized to extend as required.
| Model | Collet size inch(mm) |
Net Weight lbs(kgs) |
Length inch(mm) |
rpm | Air Inlet inch |
MinchHose Size inch(mm) |
Avg. Air Cons. cfm |
| ZDG-301L300 | 1/4(6) | 2.9(1.3) | 17.5(445) | 22000 | 1/4 | 3/8(10) | 4.2 |
| ZDG-301L500 | 1/4(6) | 3.9(1.8) | 27(688) | 22000 | 1/4 | 3/8(10) | 4.2 |
| ZDG-301L800 | 1/4(6) | 4.9(2.2) | 37.1(943) | 22000 | 1/4 | 3/8(10) | 4.2 |
| ZDG-3076L300 | 1/4(6) | 3.5(1.6) | 18.7(477) | 3500 | 1/4 | 3/8(10) | 4.2 |
| ZDG-3076L500 | 1/4(6) | 4.5(2) | 28.3(719) | 3500 | 1/4 | 3/8(10) | 4.2 |
| ZDG-3076L800 | 1/4(6) | 5.5(2.5) | 38.3(974) | 3500 | 1/4 | 3/8(10) | 4.2 |
