1. Integrated Multi-System High-Efficiency Leak Detection Unit
This professional cylinder head leak detector unifies pneumatic, electrical and hydraulic control systems into one integrated unit, delivering stable and reliable crack & leakage inspection for cylinder heads and engine blocks. It serves as core diagnostic equipment for engine remanufacturing plants, diesel repair centers and auto machine shops to eliminate hidden casting defects before engine reassembly.
2. Real Driving Engine Temperature Simulation for Accurate Hot-State Testing
Fitted with dual 5.5kW heating modules and a 0–92°C adjustable thermostat, it perfectly replicates the actual high-temperature working environment of running vehicles. Hot-condition testing exposes micro leaks, tiny cracks and porosity invisible under cold inspection, effectively preventing post-overhaul engine compression loss and secondary breakdowns.
3. 360° Infinite Flip Rotatable Bracket for Full Omni-Directional Inspection
Built with infinitely adjustable flip mounting bracket and 4.5 Tr/min steady rotary speed, the machine supports free multi-angle positioning of cylinder heads and blocks. Technicians gain full access to all water jackets, oil passages and casting surfaces to rapidly locate all leakage points without repeated workpiece re-clamping.
4. Heavy-Duty Stable Structure & Wide Cross-Vehicle Compatibility
Adopts anti-corrosion stainless steel water tank, solid vibration-resistant 650kg heavy frame and dual independent drive motors (0.37kW gear motor + 0.75kW circulation pump). It adapts to cylinder heads of passenger cars, trucks, tractors and industrial diesel engines, with compact footprint to fit limited space of professional overhaul workshops.
Technical Specifications
| Model | LD1750 |
|---|---|
| Maximum Head Capacities | |
| Height | 415 mm / 16.3 in |
| Width | 465 mm / 18.3 in |
| Length | 1450 mm / 57 in |
| Gear Motor | 0.37 kW |
| Pump Motor | 0.75 kW |
| Rotational Speed | 4.5 Tr/min |
| Heating Elements | 5.5 kW × 2 |
| Thermostat | 0–92 °C |
| Power Supply | 3 × 380V AC 50 Hz |
| Net Weight (approx.) | 650 kg / 1433 lbs |
| Space Requirements | |
| Length | 2300 mm / 90.5 in |
| Width | 1200 mm / 47.2 in |
| Height | 1850 mm / 72.8 in |
| Packing Dimensions | |
| Length | 2450 mm / 96.46 in |
| Width | 1200 mm / 47.2 in |
| Height | 1470 mm / 57.87 in |
FAQ
1. Why is pressure testing important before rebuilding an engine cylinder head or block?
Pressure testing helps identify hidden cracks, coolant leaks, and internal defects that cannot always be found through visual inspection. Testing cylinder heads and blocks before machining or assembly helps prevent engine overheating, coolant leakage, and costly rework after rebuilding.
2. What problems can the LD1750 detect on cylinder heads and engine blocks?
The LD1750 is designed to detect coolant passage leaks, casting cracks, and sealing problems in cylinder heads and cylinder blocks. It is especially useful for checking used engine components before repair processes such as surface grinding, valve seat machining, boring, or rebuilding.
3. Why is hot water pressure testing better than simple visual inspection?
Some cracks only appear when the engine component expands under operating temperature conditions. Heated pressure testing simulates real working conditions more effectively, helping workshops discover hidden leakage points that may be missed during cold inspection.
4. Can the LD1750 test different types of engine components?
Yes. The LD1750 is suitable for testing various cylinder heads and engine blocks used in automotive, diesel, commercial vehicle, and industrial engine applications. It helps engine rebuilding workshops inspect components before machining and final assembly.
5. How can the LD1750 help engine rebuilding workshops reduce repair costs?
By identifying damaged components before rebuilding, the LD1750 helps workshops avoid machining or assembling defective cylinder heads and blocks. This reduces warranty claims, prevents repeat repairs, improves rebuilding reliability, and increases customer confidence.
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.
