1. Introduction
The KGS1224SD is a high-precision surface grinding machine designed for accurate grinding of metal cylinder heads and other flat surfaces. It features advanced technology including a laser interferometer for in-situ measurement and a robust hydrostatic guideway system, ensuring stable and reliable operation with high rigidity and precision.

This manual provides essential information for the safe installation, operation, and maintenance of your KGS1224SD machine. Please read it thoroughly before operating the machine.
2. Safety Instructions
Always prioritize safety when operating industrial machinery. Failure to follow safety guidelines can result in serious injury or damage to the equipment.
- Ensure all operators are trained and familiar with the machine's operation.
- Wear appropriate personal protective equipment (PPE), including safety glasses, hearing protection, and protective clothing.
- Never operate the machine with guards removed or safety features bypassed.
- Disconnect power before performing any maintenance or adjustments.
- Keep the work area clean and free of obstructions.
- Do not wear loose clothing or jewelry that could get caught in moving parts.
- Ensure proper ventilation to dissipate grinding dust and fumes.
- Familiarize yourself with the emergency stop button location and function.
3. Setup
Proper setup is crucial for the machine's performance and longevity.
3.1 Unpacking and Placement
- Carefully unpack the machine, inspecting for any shipping damage.
- Place the machine on a level, stable foundation capable of supporting its weight (Net weight: 1900 kgs).
- Ensure adequate clearance around the machine for operation and maintenance. Refer to the Floor Space Dimensions (2600x2500 mm) in the specifications.
3.2 Electrical Connection
- Connect the machine to a suitable power supply according to local electrical codes.
- Verify that the voltage and frequency match the machine's requirements.
- Ensure proper grounding to prevent electrical hazards.
3.3 Leveling
- Use a precision level to ensure the machine bed is perfectly level.
- Adjust the leveling feet as necessary.
3.4 Fluid Filling
- Fill the hydraulic system with the recommended hydraulic oil.
- Fill the coolant system with appropriate grinding coolant.
- Check all fluid levels before initial operation.

4. Operating Instructions
This section outlines the basic steps for operating the KGS1224SD surface grinding machine.
4.1 Control Panel Overview
The machine is equipped with a Siemens Smart Line control panel for intuitive operation.
4.2 Workpiece Loading
- Clean the workpiece and the machine table thoroughly.
- Securely clamp the workpiece onto the magnetic chuck or other holding device. Ensure the workpiece is stable and will not shift during grinding.
- The maximum table load is 420 kgs.
4.3 Grinding Wheel Installation
- Ensure the correct grinding wheel (355x40x127 mm) is installed and properly balanced.
- Tighten the wheel flange securely.
4.4 Setting Grinding Parameters
- Use the control panel to set the desired table speed (5-25 m/min), crossfeed rate (0.5-12 mm automatic, 0.02 mm hand-wheel), and vertical downfeed rate (minimum 0.001 mm).
- The MPG handwheel feed rate can be set to x1, x10, or x100 for precise manual control.
4.5 Grinding Operation
- Start the spindle motor (Spindle speed: 1450 rpm).
- Engage the coolant system.
- Carefully bring the grinding wheel into contact with the workpiece, initiating the grinding process.
- Monitor the grinding process and adjust parameters as needed.

4.6 Laser Interferometer System
The integrated laser interferometer system provides in-situ measurement for machining accuracy. Its lens can scan all processing areas, measuring the transverse movement of the carriage. This system ensures high precision and allows for real-time monitoring of grinding accuracy.

5. Maintenance
Regular maintenance is essential to ensure the long-term performance and reliability of your grinding machine.
5.1 Daily Maintenance
- Clean the machine table and surrounding areas of grinding swarf and coolant residue.
- Check coolant levels and replenish if necessary.
- Inspect the grinding wheel for wear or damage.
5.2 Weekly Maintenance
- Lubricate all moving parts according to the lubrication schedule (refer to detailed machine diagrams if available).
- Clean the coolant tank and filter.
- Inspect electrical cables and connections for wear or damage.
5.3 Monthly/Quarterly Maintenance
- Check and adjust belt tension if applicable.
- Inspect the hydrostatic guideways for proper lubrication and smooth operation.
- Verify the accuracy of the laser interferometer system.
- Perform a thorough cleaning of the entire machine.
5.4 Grinding Wheel Care
- Always use the correct type and size of grinding wheel for the material being ground.
- Dress the grinding wheel regularly to maintain its cutting efficiency and profile.
- Replace worn or damaged grinding wheels immediately.
6. Troubleshooting
This section provides solutions to common issues you might encounter.
6.1 Machine Not Starting
- Check power supply and circuit breakers.
- Ensure the emergency stop button is disengaged.
- Verify all safety interlocks are closed (e.g., guards).
6.2 Poor Grinding Finish
- Check if the grinding wheel is worn, glazed, or out of balance. Dress or replace as needed.
- Ensure proper coolant flow and concentration.
- Verify workpiece clamping is secure.
- Adjust grinding parameters (feed rate, depth of cut).
6.3 Excessive Vibration
- Check for an unbalanced grinding wheel.
- Inspect machine leveling and foundation stability.
- Examine bearings for wear.
6.4 Control Panel Errors
- Refer to the Siemens Smart Line control panel manual for specific error codes.
- Contact technical support if the issue persists.
7. Specifications
Detailed technical specifications for the KGS1224SD Surface Grinding Machine.
| Parameter | Unit | Value |
|---|---|---|
| Model | KGS1224SD | |
| Condition | New | |
| CNC or Not | Normal | |
| Type | Surface Grinding Machine | |
| Origin | Mainland China | |
| Certification | CE | |
| Working surface of table | mm | 300x600 |
| Grinding Length | mm | 370 |
| Surface Roughness | µm | 0.01 |
| Max. table travel | mm | 660 |
| Max. cross travel | mm | 370 |
| Distance between table surface and spindle center | mm | 540 |
| Max. table load | kgs | 420 |
| Tee slot | mm | 1x14 |
| Table speed | m/min | 5-25 |
| Crossfeed hand-wheel | mm | 0.02 |
| Automatic crossfeed | mm | 0.5-12 |
| Power cross feed | mm | 790 |
| Grinding wheel | mm | 355x40x127 |
| Spindle speed | rpm | 1450 |
| MPG handwheel feed rate | mm | x1, x10, x100 |
| Min. down feed rate | mm | 0.001 |
| Power head increment | mm/min | 210 |
| Spindle motor | kw | 4.0 |
| Vertical motor | nm | 3.57 |
| Hydraulic motor | kw | 1.5 |
| Dust collection motor | w | 550 |
| Coolant motor | w | 90 |
| Crossfeed motor | kw | 90 |
| Floor space dimensions | mm | 2600x2500 |
| Packing dimensions (L*W*H) | mm | 2090x1940x2210 |
| Net weight | kgs | 1900 |
| Gross weight | kgs | 2200 |
8. User Tips
- Workpiece Preparation: Always ensure your workpiece is thoroughly cleaned and deburred before mounting to prevent contamination and ensure a stable grind.
- Coolant Management: Regularly check and maintain the coolant system. Proper coolant flow and filtration are critical for achieving a good surface finish and extending grinding wheel life.
- Grinding Wheel Selection: Use the appropriate grinding wheel for the material and desired finish. A coarser wheel removes material faster, while a finer wheel provides a smoother finish.
- Gradual Approach: When starting a new grind, approach the workpiece gradually with light passes to avoid shock and ensure precise material removal.
- Environmental Control: Maintain a clean workshop environment to minimize dust and debris, which can affect machine precision and operator health.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your authorized dealer or the manufacturer directly. Keep your purchase records and machine serial number readily available when contacting support.