Restore Valve Seat Accuracy During Engine Rebuilding
During cylinder head rebuilding, worn valve seats and guides require precise machining to restore proper valve sealing performance and engine reliability.
LD180 helps workshops:
Key Features
Air-Floating Automatic Centering
Quadruple air-floating system enables precise automatic centering and flexible positioning for different cylinder heads.
Adjustable-Speed High-Torque Spindle
20–1,000 rpm spindle with new-generation cutting tools for stable machining of hardened valve seats
Rigid Cast-Iron Machine Bed
Heavy-duty stress-relieved cast-iron bed provides excellent rigidity and stable performance during long-term machining.
Integrated Auxiliary Functions
Built-in leak detector and tool sharpener reduce the need for additional equipment and improve workshop efficiency.
Technical Specifications
| Model | Unit | LD180A | LD180B | LD180C | LD180D |
| Max. length of the cylinder head | mm/inch | Unlimited | |||
| Max. width of the cylinder head | mm/inch | 500 mm(19.7″) | |||
| Max. height of the cylinder head | mm/inch | 450 mm (18.7″) |
450 mm (18.7″) |
450 mm (18.7″) |
450 mm (17.7″) |
| Crosswise workpiece tilting | degrees | +45° ~ -15° | |||
| Machining capacity dia. (min – max) | φ mm/inch | 14 – 70 mm (0.6 – 2.29″) |
14 – 90 mm (0.6 – 2.95″) |
14 – 120 mm (0.6 – 4.7″) |
14 – 65 mm (0.6 – 2.55″) |
| Lengthwise travel | mm/inch | 1,000 mm (39″) |
1,000 mm (39″) |
1,230 mm (48.4″) |
930 mm (37″) |
| Crosswise travel | mm/inch | 40 mm(1.6″) | |||
| Sphere-cylinder travel | mm/inch | 9 mm(0.4″) | |||
| Max. spindle inclination | degrees | 5.5° | 5.5° | 5.5° | 5° |
| Spindle travel | mm/inch | 200 mm (8.5″) |
200 mm (8.5″) |
200 mm (8.5″) |
200 mm (8″) |
| Spindle motor power | W | 1,800 | 2,200 | 3,000 | 1,500 |
| Spindle rotation speed | rpm | 20 – 1,000 | 20 – 1,000 | 20 – 1,000 | 0 – 1,000 |
| Electric supply | — | 380 V / 50 Hz 3 Ph or 220 V / 60 Hz / 3 Ph | |||
| Air pressure | bar/psi | 6 bar(87 psi) | |||
| Max. air flow | L/min-CFM | 300 L/min(11 CFM) | |||
| Noise level @400 RPM | dBA | 65 | 65 | 65 | 72 |
| Noise level @1,200 RPM | dBA | 82 | |||
| Length | mm/inch | 2,000 mm (78.7″) |
2,100 mm (82.6″) |
2,250 mm (88.5″) |
1,820 mm (71.6″) |
| Width | mm/inch | 1,050 mm (41.3″) |
1,150 mm (45.3″) |
1,150 mm (45.3″) |
1,050 mm (41.3″) |
| Height | mm/inch | 2,050 mm (85.4″) |
2,200 mm (86.6″) |
2,200 mm (86.6″) |
2,170 mm (85.4″) |
| Net weight (approx.) | kg/lbs | 1,750 kg (3,858 lbs) |
1,850 kg (4,078 lbs) |
1,950 kg (4,299 lbs) |
1,400 kg (3,086 lbs) |
Applications
Designed for Cylinder Head Repair Professionals
Product Video
Customer Experience
Trusted by Engine Rebuilding Professionals
Solid Build Quality & Reliable Machine Structure
“We are very satisfied with the LD180D Valve Seat Boring Machine. The machine is well manufactured with a heavy-duty cast iron base. The structure is solid and stable, which gives us confidence in long-term operation.”
Ruslan Ramazanov
Kazakhstan
FAQ
1 What are the key advantages of LD180 air floating worktable?
Equipped with newtype airfloating worktable and quadruple airfloating devices for flexible cutting of heavy cylinder heads. LD180D adopts Tgroove locking device, which saves compressed air, reduces noise and guarantees stable clamping for cylinder head rebuilding.
2 What is the machining range of each model, how to choose?
LD180A: 14-70 mm LD180B: 14-90 mm LD180C: 14-120 mm LD180D: 14-65 mm
3 Can LD180D handle new energy gas engine cylinder heads?
Yes. LD180D is newgeneration model specially designed for highprecision boring of hard valve seats and guides for newenergy gas engines.
4 What are the highlights of cutting blades and machine bed?
Absolutely. The LD180 is designed for professional automotive machine shops, cylinder head remanufacturing facilities, diesel engine repair centers, and OEM rebuilding operations. Its air-floating positioning system speeds up setup while maintaining repeatable machining accuracy, making it ideal for continuous production and high-volume cylinder head reconditioning.
5 What air supply does this machine require?
Working air pressure:6.5 bar, max air flow:300 L/min. LD180D Tgroove locking consumes less air. Standard workshop air compressor is sufficient.
