Wide Valve Compatibility for Cars, Motorcycles & Tractors
This bench-top valve grinder supports broad valve dimension ranges, covering stem diameters from 3.5 mm to 20 mm and head sizes 12–100 mm. Adjustable grinding angles from 10° to 57° fit most gasoline and diesel engine valves for cars, motorcycles, and agricultural tractors — eliminating the need for multiple dedicated machines in your workshop.
OEM-Grade Precision for Perfect Valve Sealing
Equipped with a precise angle scale and steady 3,600 RPM spindle rotation, the LD100B valve seat grinder produces smooth, uniform valve cone surfaces that restore factory-standard combustion chamber sealing. Finished valves eliminate compression leakage, reduce engine oil consumption, and deliver noticeable power improvement for customer vehicles.
Compact Bench-Top Design for Small Workshops
The compact integrated body occupies minimal workshop bench space, ideal for garages with limited working area. All control knobs and clamping handles are laid out logically for intuitive operation. Technicians master full valve grinding procedures without lengthy training, speeding up valve overhaul turnaround time for daily repair orders.
Complete Kit with Built-In Cooling System
LD100B is delivered with all essential standard accessories, including grinding wheels, balancing frame, cooling pump, correction pen, and disassembly tools. The built-in spray cooling system lowers grinding temperature to prevent valve thermal deformation and extends grinding wheel service life during long-hour continuous work.
LD100B Technical Specifications
| Model | LD100B |
| Valve stem diameter (min–max) | 3.5–20 mm (0.16–0.55 in) |
| Valve head diameter (min–max) | 12–100 mm (0.47–4 in) |
| Valve length (min–max) | 70–450 mm (2.76–17.7 in) |
| Angle grinding range | 10° – 57° |
| Main wheel diameter | 200 mm (7.87 in) |
| Cup wheel diameter | 100 mm (3.94 in) |
| Main wheel width | 15 mm (0.59 in) |
| Grinding wheel travel | 90 mm (3.54 in) |
| Valve feed travel | 90 mm (3.54 in) |
| Spindle motor power | 750 W |
| Spindle motor speed | 3,600 rpm |
| Valve driving motor power | 180 W |
| Valve driving motor speed | 120–750 rpm |
| Coolant motor power | 100 W |
| Power supply | 380 V / 50 Hz / 3ph or 220 V / 60 Hz / 3ph |
| Air supply max | 6 bar / 87 psi |
| Coolant tank capacity | 4 L / 1 US gal |
| Machine dimensions (L × W × H) | 1050 × 1000 × 1100 mm (41.3 × 39.4 × 43.3 in) |
| Net weight | 260 kg (573 lbs) |
FAQ
1. What types of engine valves can the LD100B machine process?
The LD100B is suitable for grinding intake and exhaust valves used in gasoline and diesel engines, including passenger cars, commercial vehicles, motorcycles, agricultural machinery, marine engines, and industrial equipment. Its flexible adjustment allows workshops to handle a wide variety of valve sizes with one machine.
2. How does precision valve grinding improve engine reliability?
Precision valve grinding restores the correct valve face geometry and sealing surface, helping improve cylinder compression, combustion efficiency, engine power, and fuel economy. Accurate valve sealing also reduces the risk of compression leakage and extends engine service life.
3. Why is the LD100B a good choice for professional engine rebuilding workshops?
The LD100B delivers consistent grinding accuracy, smooth surface finishes, and efficient setup for different valve sizes. It helps workshops improve repair quality, reduce manual finishing work, and increase daily productivity across a wide range of engine applications.
4. Can the machine support both automotive and heavy-duty engine repair?
Yes. The LD100B is suitable for rebuilding cylinder heads used in passenger vehicles, diesel trucks, agricultural machinery, marine engines, construction equipment, and industrial generators. Its versatility makes it a practical solution for workshops serving multiple industries.
5. How can regular maintenance improve the machine’s performance?
Regular cleaning, grinding wheel inspection, spindle maintenance, and proper lubrication help maintain machining accuracy and extend machine life. Preventive maintenance also reduces downtime and ensures consistent valve grinding quality during long-term operation.
6. If the machine breaks down, how do you provide after-sales support? Do you provide operation videos?
Yes. We provide comprehensive after-sales support, including remote technical assistance, online troubleshooting, operation manuals, demonstration videos, maintenance tutorials, and live video guidance. If replacement parts are required, genuine spare parts can be supplied quickly to minimize downtime and keep your machine running efficiently.
7. Can you issue Certificates of Origin (CO), Form A, Form E, or other export documents?
Yes. We can provide the necessary export documents—including Certificates of Origin (CO) and other preferential certificates such as Form E—in accordance with the trade agreements and customs requirements of the destination country. We can also assist you in preparing commercial invoices, packing lists, bills of lading, and other export documentation.
8. What is your minimum order quantity (MOQ)? Do you support OEM & ODM customization?
Our standard MOQ is 1 machine for most models. We also provide OEM and ODM services for distributors and equipment brands, including custom logos, machine colors, nameplates, voltage, packaging, and other specifications to meet your market requirements.
9. Which shipping ports do you use? Can you deliver to my designated warehouse?
We typically ship from major Chinese ports, including Shenzhen, Guangzhou, Ningbo, and Shanghai. We can also arrange delivery to your designated warehouse, freight forwarder, or project site through flexible international shipping solutions.
10. How long does delivery take to my country?
Production typically takes 7–35 days, depending on the machine model and order quantity. Shipping time varies by destination and transportation method. Once your order is confirmed, we will provide a detailed production schedule and estimated delivery time.
