Valve Seat Ring Boring Machine

The LD2000 Valve Seat Ring Boring Machine, designed by Yueli, is a professional machine for precision machining and repair of valve seat rings in engine cylinder heads. It is widely used in the maintenance of cylinder heads for automotive, motorcycle, and marine gasoline/diesel engines. The machine can bore and ream valve ports, seat ring bores, and guide tube holes.

· Compact structure with vertical rectangular guide rails for long-term rigidity and accuracy.

· Comes fully equipped – no need to purchase additional tools, pilots, or gauges.

· Easy to operate, suitable for various workshop environments.

· Covers common valve seat ring sizes, meeting daily repair needs for most engine types.

Technical Specifications

Technical specifications for the LD2000 Valve Seat Ring Boring Machine are as follows:

· Model: LD2000

· Quantity per set: 1

· Packing dimensions (L×W×H): 1020 × 900 × 1350 mm

· Power supply: 220V / 50Hz / single phase

· Net weight: 155 kg

· Gross weight: 223 kg

Structural features:

· Vertical rectangular guide rail design – good rigidity and vibration resistance.

· Integrated bed and main frame for stable operation.

· Separate electric control box for safe and convenient operation.

Why Choose LD2000

In the field of valve seat ring repair, accuracy, rigidity, and completeness of accessories directly affect quality and efficiency. The LD2000 offers the following advantages:

① Fully equipped – ready to use

· Includes 8 types of boring blades (E1 and E2 series with various angles and radii).

· Includes 9 pilots from 4.98 mm to 11.98 mm, covering common guide bore diameters.

· Supplied with large, medium, and small tool holders to suit different bore sizes and depths.

· Comes with a tool setting gauge, hexagon wrench, and T15 wrench – no extra tools needed for setup.

② Good rigidity and reliable accuracy

· Vertical rectangular guide rails provide excellent bending and torsional stiffness.

· Precise spindle and guide rail fit ensure concentricity and surface finish.

· Stable bed reduces vibration, prolonging tool life.

③ Wide application range

· Suitable for automotive, motorcycle, and marine gasoline/diesel cylinder heads.

· Can machine valve ports, seat ring bores, and guide tube holes.

· Multiple pilot and blade combinations cover most common repair sizes.

④ Easy maintenance and sufficient spare parts

· All necessary tools are included – no extra purchases for daily adjustments.

· Standardised holder and pilot interfaces simplify replacement.

Standard Packing List

The LD2000 comes with 28 items as listed below:

Notes on the kit:

· Boring blades: E1 series (5 pcs: 45°-0.8, 45°-1.2, 55°-1.5, 60°-1.2, 90°) and E2 series (3 pcs: 45°-0.8, 45°-1.2, 60°-1.2) – different angles and radii for various valve seat taper requirements.

· Pilots: 9 diameters from 4.98 mm to 11.98 mm, matching common valve guide bore sizes to ensure accurate centring during boring.

· Tool holders: three sizes (large, medium, small) for different bore diameters and machining depths.

· Tool setting gauge: allows quick tool installation and position calibration.

Application Scope

The LD2000 Valve Seat Ring Boring Machine is designed for the core challenge in cylinder head repair – precision boring and reaming of valve seats. Typical applications include:

· Automotive engine cylinder head repair – cars, SUVs, light commercial vehicles (gasoline/diesel).

· Motorcycle engine cylinder head repair – single-cylinder and multi-cylinder engines.

· Marine engine cylinder head repair – marine diesel engines, including larger valve seats.

· Engine remanufacturing and professional boring shops – batch processing and guide hole reaming.

Usage and Maintenance

Unpacking inspection:

· Check all 28 items against the packing list.

· Inspect the machine, bed, and electric control box for any transit damage.

· Ensure blade edges and pilot surfaces are intact.

Installation and setup:

· Place the bed on a level and sturdy workbench.

· Connect the power supply (220V/50Hz single phase) as per the control box label.

· Clamp the cylinder head, insert the appropriate pilot into the guide hole for positioning.

· Select the correct boring blade for the valve seat angle and mount it on the tool holder.

· Use the tool setting gauge to calibrate the tool position before starting.

Routine maintenance:

· Keep guide rail surfaces clean and lubricate regularly.

· Clean blades after use and avoid impact damage.

· Wipe pilots after use and store them by size.

· Keep the electric control box dry and ventilated; inspect wiring periodically.

Packing and Shipping

The LD2000 is packed in a standard export wooden case to ensure safe transport:

· Packing method: Standard export plywood case

· Packing dimensions: 1020 × 900 × 1350 mm

· Net weight: 155 kg

· Gross weight: 223 kg

· Power supply: 220V / 50Hz / single phase

· Suitable for land, sea, or air freight

All components are securely fixed inside the case, with blades and pilots individually packed to avoid damage. Please inspect the shipment upon arrival and contact the carrier or supplier immediately if any issues are found.

Ordering and Enquiries

Quanzhou YueLi Automation Equipment Co., Ltd. provides sales and technical support for the LD2000 Valve Seat Ring Boring Machine. Whether you run an automotive repair shop, motorcycle service station, marine engine repair business, or professional engine remanufacturing facility, YueLi can offer the right solution and after-sales support.

Contact information:

· Company: Quanzhou YueLi Automation Equipment Co., Ltd.

· Product: LD2000 Valve Seat Ring Boring Machine

For product details, delivery times, and warranty policies, please feel free to contact the YueLi team. We look forward to serving you.