Quadruple Air-Floating Worktable for Oversized Cylinder Heads
Equipped with an upgraded four-point air-floating supporting structure, the worktable moves freely to accommodate oversized and heavy cylinder heads of any length. Matched with T-groove rapid clamping fixtures, it replaces outdated vacuum locking designs to save compressed air consumption and maintain long-term stable positioning precision during continuous valve seat boring operations.
Reinforced Cutting Blade with 30% More Cutting Force
Custom thickened cutting tool inserts raise overall cutting force by 30% compared with standard blades. The strengthened cutter structure handles ultra-hard alloy valve seats without chipping or deformation, realizing one-step precise boring and eliminating repeated secondary finishing procedures for engine cylinder heads in your rebuilding workshop.
Maintenance-Free 1.5 kW Spindle with Stepless Speed Control
Fitted with a copper-rotor 1.5 kW maintenance-free spindle motor supporting 0–1,000 rpm stepless speed regulation. Integrated electro-controlled spindle locking and a one-piece chromium-plated quill guarantee consistent dimensional accuracy, while the ISO30 taper driving device reduces vibration for ultra-smooth boring results on every valve seat.
Wide Compatibility for Gasoline, Diesel & New Energy Engines
Boasting an ultra-wide machining diameter range of 14–65 mm (0.6–2.55 in) and unlimited cylinder head length capacity, the valve seat boring machine covers gasoline, diesel, and new energy vehicle cylinder heads of diverse sizes. The adjustable ±45° crosswise tilting platform fits multi-angle valve seat boring tasks, making it an all-purpose solution for mixed fleet engine overhaul businesses worldwide.
Technical Specifications
| Model | LD180D |
| Machine dimensions (L × W × H) | 1,820 × 1,050 × 2,170 mm (71.6 × 41.3 × 85.4 in) |
| Max. cylinder head width | 500 mm (19.7 in) |
| Max. cylinder head height | 450 mm (17.7 in) |
| Max. cylinder head length | Unlimited |
| Machining diameter range (min–max) | 14–65 mm (0.6–2.55 in) |
| Work head travel (lengthwise) | 930 mm (37 in) |
| Work head travel (crosswise) | 40 mm (1.6 in) |
| Spindle travel | 200 mm (8 in) |
| Max. spindle inclination | 5° |
| Crosswise workpiece tilting | +45° to 15° |
| Spindle motor power | 1.5 kW (1,500 W) |
| Spindle rotation speed | 0–1,000 rpm |
| Power supply | 380 V / 50 Hz / 3ph or 220 V / 60 Hz / 3ph |
| Air pressure | 6 bar / 87 psi |
| Max. air flow | 300 l/min / 11 CFM |
| Noise level (400 rpm) | 72 dBA |
| Noise level (1,200 rpm) | 82 dBA |
| Net weight | 1,400 kg (3,086 lbs) |
Product Video
FAQ
1 What types of cylinder heads can the LD180D machine?
The LD180D is designed to machine valve seats on cylinder heads from a broad range of engines, including passenger cars, light trucks, SUVs, motorcycles, and small to medium industrial engines. Its adjustable workholding system accommodates various cylinder head sizes and configurations, making it a versatile choice for general engine machine shops.
2 How does the air-floating positioning system improve machining accuracy?
The LD180D’s air-floating positioning system creates a thin air cushion between the worktable and the base, allowing the operator to position the cylinder head with minimal friction and exceptional smoothness. This enables ultra-precise alignment of the valve guide pilot with the cutting tool, ensuring perfect concentricity between the valve seat and the valve guide — a critical factor for proper valve sealing and engine performance.
3 Why is valve seat concentricity so important?
Valve seat concentricity — the precise alignment between the valve seat, valve guide, and valve stem — directly determines sealing quality. Even minor misalignment causes uneven valve seating, leading to compression loss, burnt valves, reduced power, and poor fuel efficiency. The LD180D’s precision alignment mechanisms ensure that every machined valve seat is perfectly centered, delivering reliable long-term engine performance.
4 Can the LD180D handle both small and large cylinder heads?
Yes. The LD180D features an adjustable worktable and versatile clamping system that accommodates a wide range of cylinder head sizes, from small motorcycle and small-engine heads to larger automotive and light truck cylinder heads. This flexibility allows the machine to serve diverse customer needs without requiring multiple dedicated boring setups.
5 What advantages does the LD180D offer to professional engine machine shops?
The LD180D combines professional-grade precision with operational efficiency. Its air-floating table reduces operator fatigue and speeds up workpiece positioning, while the rigid cutting assembly ensures consistent results. For professional shops, these features translate to higher daily throughput, more consistent quality, and the ability to take on a wider variety of valve seat machining jobs.
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.
