Universal Tool & Cutter Grinder Machine U Series — PR-U2
Engineered for precision sharpening of cutting tools, this universal grinder handles end mills, reamers, and drill bits with high accuracy. Suitable for tool rooms and maintenance units, it offers versatile angle adjustments and robust construction. • Max grinding diameter up to 25mm • Adjustable taper and relief angles • Stable spindle speed for consistent results • Ideal for CNC and industrial workshops
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Specifications
For: PR-U2- Model
- AR-U2
- Type
- Universal Cutter Grinder
- Max Collet Capacity
- Ø16–18 mm
- Max Grinding Diameter
- Ø25 mm
- Grinding Wheel Size
- 100 × 50 × 20 mm
- Spindle Speed
- 3600 – 5200 RPM
- Motor Power
- 1/3 HP (0.37 kW)
- Voltage
- 220V / 380V
- Taper Angle Range
- 0° – 180°
- Relief Angle Range
- 0° – 45°
- Negative Angle Range
- 0° – 25°
- Tool Holder Travel
- 140 mm
- Index Head Positions
- 24 Positions
- Grinding Precision
- 0.02–0.03 mm
- Machine Weight
- 45 – 60 kg
- Packing Size
- 540x440 ×480 mm
- Standard Accessories Included
- Collets: Dia. 4, 6, 8 mm
Configurations
Click a row to switch| Variant | Max Collet Capacity | Max Grinding Diameter | Voltage | Machine Weight | Price |
|---|---|---|---|---|---|
| PR-U2 | Ø16–18 mm | Ø25 mm | 220V / 380V | 45 – 60 kg | ₹47,900 |
| PR-U3 | Ø16–18 mm | Ø25 mm | 220V / 380V | 55 – 66 kg | ₹55,000 |
Common Buyer Questions
Q: Is this machine suitable for CNC tool maintenance? A: Yes, it is designed for CNC maintenance units and industrial production setups. Q: What voltage options are available for this grinder? A: The machine supports both 220V and 380V voltage configurations. Q: Can it handle large diameter cutting tools? A: It supports a max grinding diameter of Ø25 mm for various cutters.
Ideal Workshop & Production Environments
- Ideal for tool rooms requiring frequent reconditioning of cutting tools
- Suited for CNC maintenance units needing precise tool restoration
- Supports industrial production setups with high durability requirements
- Ensures accuracy and efficiency for professional machining workflows
- Built for durability to withstand continuous use in busy workshops
Precision Indexing & Control
- Features 24 index positions for accurate tool division and setup
- Provides 140 mm tool holder travel for extended reach and flexibility
- Ensures stable operation with machine weight between 45 and 60 kg
- Designed for accuracy and efficiency in everyday tool grinding operations
- Compact packing size of 540x440 ×480 mm facilitates easy transport
Robust Motor & Spindle Performance
- Equipped with a reliable 1/3 HP (0.37 kW) motor for consistent power
- Offers variable spindle speed control from 3600 to 5200 RPM
- Max grinding diameter reaches Ø25 mm for larger cutter tools
- Accepts collet capacities ranging from Ø16 to 18 mm for secure holding
- Utilizes 100 × 50 × 20 mm grinding wheels for versatile operations
- Compatible with 220V / 380V voltage standards for global use
Versatile Tool Sharpening Capabilities
- Designed for sharpening and reconditioning a wide range of cutting tools
- Handles end mills, reamers, drill bits, and side & face cutters effectively
- Achieves high precision grinding accuracy of 0.02–0.03 mm
- Supports taper angle ranges from 0° to 180° for complex geometries
- Allows relief angle settings between 0° and 45° for optimal edge life
- Accommodates negative angle grinding up to 25° for specialized tools
- Available in AR-U2 and U3 series configurations for diverse shop needs
Standard Accessories
- Grinding Wheel (100×50×20 mm)
- Wheel Flange (Mounted)
- Diamond Wheel Dresser
- Collet Set (Ø4, 6, 8, 10, 12 mm)
- Drive Belt
- Tool Kit (Spanners, Allen Keys)
- Aligning Finger
- Lock Pin
- Screwdrivers / Basic Tools
- Lathe Tool Grinding Attachment (For U3)
- Indexing Head (24 Position)
- Work Light (in some models)
More questions buyers ask
What is a universal tool and cutter grinder used for?
A universal tool and cutter grinder is a versatile machine tool used to sharpen and recondition a wide variety of cutting tools, such as end mills, drill bits, reamers, and lathe tools, ensuring they maintain their precision and effectiveness.
What is the maximum grinding diameter for the PENTAGON U-Series grinders?
Both the AR-U2 and AR-U3 models support a maximum grinding diameter of up to 25 mm, allowing for the sharpening of a wide range of standard industrial cutting tools.
What is the spindle speed of this machine?
The machine offers a variable spindle speed ranging from 3600 to 5200 RPM, providing the flexibility needed for different tool types and materials.
What materials is the machine constructed from?
The PENTAGON Universal Cutter Grinder is built with a robust cast iron and steel body, ensuring stability, durability, and long-lasting precision.
What is the approximate weight of the machine?
The machine weight is between 45 kg and 66 kg, depending on the model and included accessories, which provides a stable base for vibration-free grinding.
What is the power requirement for this grinder?
It is equipped with a 1/3 HP (0.37 kW) motor and can be configured for either 220V or 380V power supplies to suit different workshop electrical setups.
Is this machine difficult to operate?
No, the grinder is designed with user-friendly controls, making it easy to set up and operate for tasks like angle adjustments and tool holding, even for less experienced users.
Who should choose the PENTAGON PR-U2 model?
The PR-U2 model is an excellent choice for workshops and tool rooms that require a reliable and precise machine for standard tool sharpening tasks. It offers a grinding precision of 0.02-0.03 mm and comes with essential accessories, making it a great value for its capabilities.
Who should choose the PENTAGON PR-U3 model?
The PR-U3 model is ideal for high-precision environments where accuracy is critical. It offers a superior grinding precision of 0.01 mm and includes a more comprehensive set of standard accessories, such as attachments for twist drills, end mills, and lathe tools, providing maximum versatility out of the box.
What is the main difference between the AR-U2 and AR-U3 models?
The primary differences are in grinding precision and the included accessories. The AR-U3 offers higher precision (0.01 mm vs. 0.02-0.03 mm for the AR-U2) and comes with a more extensive set of attachments for various tool types.
Which model includes more standard accessories?
The AR-U3 model includes a more comprehensive accessory package, featuring attachments for twist drills, end mills, and lathe tools, in addition to the standard collets and wheels.
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Full description
Engineered for precision sharpening of cutting tools, this universal grinder handles end mills, reamers, and drill bits with high accuracy. Suitable for tool rooms and maintenance units, it offers versatile angle adjustments and robust construction.
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• Max grinding diameter up to 25mm • Adjustable taper and relief angles • Stable spindle speed for consistent results • Ideal for CNC and industrial workshops