Pentagon High Precision Manual Surface Grinder 200x350 mm
A sturdy cast-iron-base manual surface grinder engineered for precision flat-surfaces, with a working table of about 225×350 mm, fine hand-feed controls (vertical feed least count 0.01 mm, micro-feed optionally 0.002 mm), a high-speed grinding wheel (2800 rpm), and suitable for tool-rooms and workshops needing tight finishes on metallic workpieces
See it in action
Specifications
For: 200x350 mm- Spindle speeds
- 2800 rpm
- Distance from table surface to spindle center
- 275 mm
- Cross feed graduation
- 0.05 mm
- Net weight of Machine appx
- 700 Kgs
- Wheel size (dia*width*bore)
- 200x13x31.75 mm
- Model
- SG-2
- Magnet Type
- Manual Permanent Magnet
- Magnet Size
- 200x300 mm
- Table size
- 225x350 mm
- Vertical feed graduation
- 0.01 mm
- Main Spindle Motor
- 1 HP
- Travel Cross
- 225 mm
Configurations
Click a row to switch| Variant | Magnet Size | Wheel size (dia*width*bore) | Spindle speeds | Table size | Price |
|---|---|---|---|---|---|
| 200x350 mm | 200x300 mm | 200x13x31.75 mm | 2800 rpm | 225x350 mm | ₹1,55,000 |
| 225x450 mm | 200x450 mm | 200x13x31.75 mm | 2800 rpm | 225x450 mm | ₹1,92,000 |
| 225x500 mm | 200x450 mm | 200x13x31.75 mm | 2800 rpm | 250x500 mm | ₹2,25,000 |
| 300x600 mm | 250x500 mm | 200x13x31.75 mm | 2800 rpm | 600x300 mm | ₹2,65,000 |
| 175x300 mm | 150x300 mm | 175x13x31.75 mm | 2800 rpm | 175x300 mm | ₹1,35,000 |
Description
The High Precision Manual Surface Grinder Machine, Model SG-1 is engineered for exceptional flatness, long-term durability, and superior surface finish in industrial and tool room applications. Designed with precision in mind, this surface grinding machine delivers accurate and consistent results on various metal and non-metal workpieces with minimal operator effort.
Applications
1. Precision Surface Finishing
- Achieving high surface smoothness and tight dimensional tolerances
- Producing perfectly flat and parallel surfaces
2. Tool Room & Maintenance Work
- Reconditioning and sharpening of tools
- Maintenance of machine components
- Repair and refurbishment of worn parts
3. Die & Mould Industry
- Surface preparation of dies and mould plates
- Finishing of cavity plates and inserts
- Ensuring flatness before assembly
4. Small Batch & Prototype Production
- Ideal for low-volume manufacturing
- Accurate finishing of custom components
- Prototype development and R&D applications
5. Jig, Fixture & Gauge Manufacturing
- Grinding of precision jigs and fixtures
- Calibration block finishing
- Gauge plate surface correction
6. Engineering Workshops & Training Institutes
- Educational training on grinding operations
- General fabrication and workshop use
Features
Robust Construction:
- Built on a rigid cast iron bed and column, the SG-1 provides vibration-free operation and excellent structural stability during grinding cycles.
Precision Ground Table:
- The work table is precision ground with accurate travel controls for smooth longitudinal and cross feed. Height and traverse feed graduations are finely calibrated to ensure micrometric accuracy.
Manual Control:
- User-friendly handwheel control for X, Y, and Z axes allows precise manual adjustments for depth and traverse positions, ideal for detailed surface finish work.
Durable Spindle Assembly:
- High-quality spindle with precision bearings ensures reliable performance and long service life with reduced maintenance.
High Surface Quality:
- Achieves fine and uniform finish on components, making it suitable for tool rooms, workshops, maintenance shops, and small batch production units.
Advantages
1. High Precision Accuracy
- Micrometric feed control for accurate depth adjustment
- Excellent flatness and parallelism results
- Consistent surface finish quality
2. Robust & Rigid Construction
- Heavy-duty cast iron body minimizes vibration
- High structural stability for long-term accuracy
- Durable design suitable for continuous operation
3. Superior Surface Finish
- Produces smooth and uniform finishes
- Ideal for precision components and tooling applications
4. Easy Manual Operation
- Smooth handwheel control for X, Y, and Z axes
- Simple setup and user-friendly controls
- Ideal for skilled operators and training environments
5. Low Maintenance & Long Service Life
- High-quality spindle assembly with precision bearings
- Minimal wear and reduced maintenance requirements
- Reliable performance over years of use
6. Cost-Effective Solution
- Lower investment compared to fully automatic grinders
- Reduced operational and maintenance costs
- Suitable for small and medium-scale industries
7. Versatile Applications
- Suitable for tool rooms, die & mould units, workshops, and educational institutes
- Capable of handling a wide range of ferrous and non-ferrous materials
Standard Accessories
- Grinding wheel
- Spanner set
- Magnetic chuck suitable as per machine model
- Machine lifting frame
- Diamond Dresser
More questions buyers ask
What is a manual surface grinder used for?
A manual surface grinder is used for precision finishing of metal components, achieving high flatness, parallelism, and smooth surface finishes in tool rooms and workshops.
What are the key features of the Pentagon SG series?
The Pentagon SG series features a rigid cast iron body for vibration-free operation, precision-ground tables, micrometric feed controls, and high-quality spindle assemblies.
Is the Pentagon manual surface grinder suitable for small workshops?
Yes, it is highly cost-effective, requires minimal maintenance, and is ideal for small to medium-scale industries, tool rooms, and training institutes.
What materials can be ground on this machine?
It is capable of handling a wide range of ferrous and non-ferrous materials commonly used in engineering and manufacturing.
Does the machine come with a magnetic chuck?
Yes, standard accessories include a manual permanent magnetic chuck suitable for the specific machine model.
What is the difference between manual and automatic surface grinders?
Manual grinders offer precise handwheel control for detailed work and are more cost-effective, whereas automatic grinders are designed for high-volume production.
How do I maintain the spindle accuracy?
The machine uses high-quality precision bearings; regular lubrication and following the maintenance schedule provided in the manual will ensure long-term accuracy.
What is the benefit of a cast iron bed?
A heavy-duty cast iron bed provides superior structural stability and minimizes vibrations, which is critical for achieving high-precision surface finishes.
Can this machine be used for die and mould making?
Yes, it is widely used in the die and mould industry for surface preparation of plates, finishing of cavity plates, and ensuring flatness.
What is the warranty and support for Pentagon machines?
Pentagon provides dependable after-sales support and warranty coverage for their industrial equipment, ensuring reliable performance.
Who should choose the SG-1 model?
The SG-1 is perfect for small workshops and training centers needing a compact, high-precision solution for light-duty surface grinding tasks.
Who should choose the SG-5 model?
The SG-5 is ideal for heavy-duty industrial applications requiring a larger table size (300x600 mm) and higher motor power (2 HP).
How do the SG-1 and SG-5 models compare?
The SG-1 is a compact 175x300 mm model for precision work, while the SG-5 is a larger 300x600 mm model designed for heavier components and higher capacity.
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Full description
A sturdy cast-iron-base manual surface grinder engineered for precision flat-surfaces, with a working table of about 225×350 mm, fine hand-feed controls (vertical feed least count 0.01 mm, micro-feed optionally 0.002 mm), a high-speed grinding wheel (2800 rpm), and suitable for tool-rooms and workshops needing tight finishes on metallic workpieces