📦 Diesel Screw Air Compressors
Kaishan LGCY-43/25-35/35 Diesel Screw Air Compressor
Model: LGCY-43/25-35/35
The Kaishan LGCY-43/25-35/35 diesel screw air compressor delivers reliable high-pressure air for mining, water well drilling, and construction. With a free air delivery of 43 m³/min and working pressure of 25 bar, this heavy-duty unit is powered by a fuel-efficient diesel engine and engineered for continuous operation in the toughest environments. Its advanced screw airend, robust cooling system, and intelligent control panel ensure stable performance, low maintenance, and long service life. Whether you are running DTH hammers, pneumatic tools, or drilling rigs, the LGCY-43/25-35/35 provides the air power you need. Compact, mobile, and easy to service, it is the ideal choice for contractors and mining operators seeking productivity and durability.
Technical Specifications
| Model | LGCY-43/25-35/35 |
| Free Air Delivery | 43 m³/min (1519 CFM) |
| Working Pressure | 25 bar (363 psi) |
| Engine | Cummins QSX15 or equivalent, 350 kW |
| Air Outlet Port | 2 × DN80 |
| Weight | 8500 kg |
| Dimension (L×W×H) | 4500 × 2000 × 2500 mm |
Product Details
Technical Selection
Key parameters for matching this machine to your job. Send us your hole diameter, depth and rock condition and our engineers will confirm the right configuration.
Working Pressure
25 bar (363 psi)
Free Air Delivery
43 m³/min (1519 CFM)
Weight
8500 kg
Dimension (L×W×H)
4500 × 2000 × 2500 mm
Not sure this model fits? Tell us the hole diameter and depth — we will confirm the matching rig, compressor and hammer.
Check with an engineerKey Advantages
High free air delivery of 43 m³/min for demanding applications
25 bar working pressure suitable for DTH drilling and heavy pneumatic tools
Fuel-efficient diesel engine with low emissions and reliable cold-start
Advanced screw airend for efficient compression and long service life
Intelligent control system with real-time monitoring and fault diagnosis
Rugged mobile chassis with weatherproof canopy for outdoor use
Applications
📍 Mining & Quarrying
Powers DTH hammers, rock drills, and pneumatic systems in open-pit and underground mines.
Solution: The LGCY-43/25-35/35 delivers high-pressure air to maximize drilling speed and efficiency, with robust construction to withstand dust and vibration.
📍 Water Well Drilling
Provides reliable air for hammer drilling and well development in remote areas.
Solution: Its high air delivery and pressure ensure fast penetration rates, while the diesel engine enables operation independent of grid power.
📍 Construction & Infrastructure
Operates pneumatic tools, sandblasting, and concrete spraying equipment on job sites.
Solution: Mobile and easy to transport, the compressor supplies consistent air power for multiple tools, improving on-site productivity.
📍 Oil & Gas Exploration
Supports air drilling and pipeline testing in oil and gas fields.
Solution: The unit's high pressure and flow rate meet the demands of air drilling, with safety features for hazardous environments.
Similar Models in This Category
This model is unique in its series — here are similar models from the same category.
| ☑ | Model | Model | Free Air Delivery | Working Pressure | Engine | Air Outlet Port | Inquire |
|---|---|---|---|---|---|---|---|
| LGCY-43/25-35/35This model | LGCY-43/25-35/35 | 43 m³/min (1519 CFM) | 25 bar (363 psi)★ | Cummins QSX15 or equivalent, 350 kW | 2 × DN80 | Get a Quote | |
| LGCY-21/13TK | LGCY-21/13TK | 21 m³/min (740 CFM) | 13 bar (190 psi) | Cummins or Yuchai diesel engine | G1.5×1, G3/4×1 | Get a Quote | |
| LGCY-25/10TK | LGCY-25/10TK | 25 m³/min (883 CFM) | 10 bar (145 psi) | Cummins or Yuchai diesel engine | G1.5×1, G3/4×1 | Get a Quote | |
| LGCY-30/8TK | LGCY-30/8TK | 30 m³/min (1060 CFM) | 8 bar (116 psi) | Cummins / Yuchai diesel engine | G1.5×1, G3/4×1 | Get a Quote | |
| KSCY-220/8X | KSCY-220/8X | 22 m³/min | 8 bar (116 psi) | Weichai/Deutz diesel, 75-90 kW | G1.5×1, G3/4×1 | Get a Quote | |
| LCGC-29/23 (crawler base) | LCGC-29/23 (crawler base) | 29 | 2.3 | — | G2×1, G³/₄×1 | Get a Quote | |
| KSCY-175/8 | KSCY-175/8 | 5.0 m³/min (175 CFM) | 8 bar (116 psi) | Cummins / Yuchai, 52 kW (70 HP) | G1-1/4 × 1, G3/4 × 1 | Get a Quote | |
| KSCY-400/14.5K | KSCY-400/14.5K | 400 CFM (11.3 m³/min) | 14.5 bar (210 psi) | Diesel engine, 6-cylinder, 110 kW | 2 × 3/4 inch or 1 × 1 inch | Get a Quote | |
| KSCY-550/13 | KSCY-550/13 | 550 CFM (15.6 m³/min) | 13 bar (188 psi) | Cummins QSB5.9 or equivalent, 132 kW | 2 × 3/4" or 1 × 1" | Get a Quote |
Compare 2–3 models? Tick the boxes and send them together — we will quote each one for you.
Tip: select multiple models and click “Inquire All” — the selected models are added to the quote form automatically, so you get a faster quotation.
Not sure which model fits your project? Send us your working pressure and air demand — our engineers will recommend the right one.
Main Components
- Diesel engine
- Screw airend
- Air intake filter
- Oil separator tank
- Cooling system (radiator and fan)
- Control panel
- Safety valves and gauges
- Heavy-duty chassis and canopy
Working Principle
The Kaishan LGCY-43/25-35/35 operates on the principle of positive displacement rotary screw compression. Air is drawn through an intake filter and enters the airend, where two intermeshing helical screws rotate. As the screws turn, the volume between them decreases, compressing the air. Oil is injected into the compression chamber to lubricate, seal, and cool the process. The compressed air-oil mixture then passes through a separator, where oil is removed and returned to the system. The clean, high-pressure air is cooled and delivered to the outlet. The diesel engine drives the airend via a coupling, and an intelligent control system regulates engine speed and air intake to match demand, ensuring efficient operation. This design provides continuous, pulse-free air delivery with minimal maintenance.
Detailed Features
- ▸High-capacity screw airend for efficient compression
- ▸Fuel-efficient diesel engine with low emissions
- ▸Advanced cooling system for extreme climates
- ▸Intelligent control panel with fault diagnostics
- ▸Rugged mobile chassis for rough terrain
- ▸Easy access for maintenance and service
- ▸Safety valves and automatic shutdown protection
- ▸Optional cold-start and high-altitude configurations
Packaging & Shipping
The Kaishan LGCY-43/25-35/35 is shipped in a protective seaworthy package, typically loaded into a 40-foot container or flat rack depending on configuration. Each unit is securely fastened and covered to prevent damage during transit. Delivery time is approximately 30-45 days after order confirmation, depending on quantity and customization. Ports of departure include Shanghai, Ningbo, or Qingdao, China. For urgent orders, expedited shipping options are available upon request.
After-Sales Service
Kaishan offers comprehensive after-sales service for the LGCY-43/25-35/35. All products come with a 12-month warranty or 2000 operating hours, whichever comes first, covering major components. Our global service network provides 24-hour technical support and genuine spare parts delivery. We offer on-site installation, commissioning, and operator training to ensure optimal performance. Regular maintenance programs and extended warranty options are available. Customers can reach our support team via phone, email, or online portal for prompt assistance.
Frequently Asked Questions
What is the free air delivery and working pressure of the LGCY-43/25-35/35?+
The LGCY-43/25-35/35 delivers a free air delivery of 43 m³/min (1519 CFM) at a working pressure of 25 bar (363 psi). These figures make it suitable for high-pressure air demand in drilling and pneumatic tool operation.
What engine powers the LGCY-43/25-35/35?+
The LGCY-43/25-35/35 is powered by a Cummins QSX15 or equivalent engine rated at 350 kW. The diesel engine is designed for fuel-efficient operation and reliable cold-start.
What equipment can run on the air supply of the LGCY-43/25-35/35?+
With 43 m³/min at 25 bar, the LGCY-43/25-35/35 can supply DTH hammers, drilling rigs and heavy pneumatic tools. The unit has 2 × DN80 air outlet ports for connection.
Where can the LGCY-43/25-35/35 be used?+
The LGCY-43/25-35/35 is applied in mining and quarrying, water well drilling, construction and infrastructure, and oil and gas exploration. Its rugged mobile chassis with weatherproof canopy supports outdoor use on rough terrain.
What are the dimensions and weight of the LGCY-43/25-35/35?+
The LGCY-43/25-35/35 measures 4500 × 2000 × 2500 mm (L×W×H) and weighs 8500 kg. The rugged mobile chassis is built for rough terrain.
How is the LGCY-43/25-35/35 packaged and shipped?+
The LGCY-43/25-35/35 is shipped in a protective seaworthy package, typically loaded into a 40-foot container or flat rack depending on configuration. Ports of departure include Shanghai, Ningbo or Qingdao, with delivery approximately 30-45 days after order confirmation.
What warranty and after-sales service come with the LGCY-43/25-35/35?+
The LGCY-43/25-35/35 comes with a 12-month warranty or 2000 operating hours, whichever comes first, covering major components. Kaishan provides 24-hour technical support, genuine spare parts delivery, and on-site installation, commissioning and operator training.
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