Bonet Extra Heavy Duty Master Grip 4 jaw Independent Chucks Size 8"
Bonet Extra Heavy Duty Master Grip 4 jaw Independent Chucks provide precise independent control for complex machining operations. This 8-inch model features a 50 mm bore and 110 mm PCD for secure mounting. Key specifications include: • Item Code: 5089-8 • Mounting Recess: 85 mm • Ideal for precision turning of irregular workpieces
Specifications
For: Size 8"- Product type
- Extra Heavy Duty Independent Chucks
- Size
- Size 8"
- Item Code
- 5089-8
- Series
- EHD-MG
- Bore (mm)
- 50
- PCD(mm)
- 110
- Mounting Recess (mm)
- 85
Configurations
Click a row to switch| Variant | Bore (mm) | Mounting Recess (mm) | PCD(mm) | Item Code | Price |
|---|---|---|---|---|---|
| Size 8" | 50 | 85 | 110 | 5089-8 | ₹16,400 |
| Size 10" | 60 | 100 | 126 | 5089-10 | ₹20,600 |
| Size 12" | 75 | 160 | 140 | 5089-12 | ₹29,300 |
| Size 14" | 85 | 175 | 155 | 5089-14 | ₹33,000 |
| Size 16" | 100 | 200 | 175 | 5089-16 | ₹49,300 |
| Size 18" | 115 | 200 | 175 | 5089-18 | ₹55,000 |
Versatile Machining Applications
- Suitable for complex setups requiring off-center or angular workpiece positioning
- Excellent for repairing worn parts by allowing precise re-alignment of bores
- Used in toolroom settings for one-off prototypes and specialized fixtures
- Supports heavy roughing cuts where standard chucks might slip or vibrate
- Ideal for aerospace, automotive, and general engineering manufacturing sectors
Heavy-Duty Construction
- Built to extra heavy-duty standards for enhanced rigidity and vibration resistance
- High-strength materials ensure durability under extreme cutting forces
- Precision-ground jaws provide long-lasting wear resistance and secure hold
- Robust gear system minimizes backlash for improved machining accuracy
- Designed to support large, dense workpieces without deflection during operation
Independent Jaw Precision
- Each of the four jaws moves independently via individual pinion gears for maximum flexibility
- Enables accurate clamping of square, rectangular, and other non-round geometries
- Allows for eccentric mounting when specific offset requirements are needed
- Facilitates setup of castings or forgings that require custom alignment
- Provides superior control over workpiece concentricity compared to self-centering chucks
Product Overview
- Bonet Extra Heavy Duty Master Grip 4 jaw Independent Chucks deliver robust clamping for demanding machining tasks
- Designed as part of the EHD-MG series, these chucks handle high-torque operations with stability
- The independent jaw mechanism allows for precise positioning of irregular or non-circular workpieces
- Ideal for heavy-duty turning, facing, and boring operations in industrial environments
- Engineered to withstand continuous use while maintaining consistent grip strength
Standard Accessories
BONMAC Heavy Duty chucks will stand well ahead in Quality and usage life if compared with competitive brands available in the market. Bonmac chucks will give trouble free service for long period. Operating Key, Mounting Bolts & Inspection Reportis provided with each chuck.
More questions buyers ask
What is a 4-jaw independent chuck?
A 4-jaw independent chuck is a lathe accessory where each jaw moves independently, allowing for precise centering of irregular, square, or rectangular workpieces.
Why choose Bonet Extra Heavy Duty chucks?
Bonet chucks are built for high-torque industrial applications, offering superior rigidity, vibration resistance, and long-lasting durability.
Can these chucks hold non-round parts?
Yes, the independent jaw movement is specifically designed to securely grip square, hexagonal, and irregular-shaped workpieces.
What sizes are available for Bonet EHD-MG chucks?
We offer sizes ranging from 8 inches to 18 inches to suit various lathe machine requirements.
Are these chucks suitable for heavy roughing cuts?
Yes, their extra heavy-duty construction is engineered to withstand high cutting forces without deflection.
What accessories come with the chuck?
Each Bonet chuck includes an operating key, mounting bolts, and an inspection report.
Is the jaw reversible?
Yes, the jaws can be reversed to hold workpieces by the inside diameter.
What industries use these chucks?
They are widely used in aerospace, automotive, toolroom settings, and general engineering manufacturing.
How do I adjust the jaws?
Each jaw is adjusted independently using the provided chuck wrench.
Are these chucks ISO certified?
Bonet Machine Tools is an ISO-certified manufacturer, ensuring high-quality standards for all their products.
Who should choose the 8-inch model?
The 8-inch model is ideal for smaller lathe setups requiring high-precision independent clamping for compact workpieces.
Who should choose the 18-inch model?
The 18-inch model is designed for large-scale industrial turning and boring operations requiring maximum clamping capacity.
How does the 8-inch compare to the 18-inch model?
The 8-inch model is compact for smaller parts, while the 18-inch model provides a larger bore and higher clamping capacity for heavy industrial components.
Which chuck is best for heavy-duty roughing?
The larger models (14-18 inch) offer the most robust construction and vibration resistance for heavy-duty roughing cuts.
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Full description
Bonet Extra Heavy Duty Master Grip 4 jaw Independent Chucks provide precise independent control for complex machining operations. This 8-inch model features a 50 mm bore and 110 mm PCD for secure mounting. Key specifications include: • Item Code: 5089-8 • Mounting Recess: 85 mm • Ideal for precision turning of irregular workpieces



