📦 High-Pressure Air Compressors
Kaishan LGCY-45/25-37/35 Diesel Screw Compressor
Model: LGCY-45/25-37/35
The Kaishan LGCY-45/25-37/35 portable diesel screw compressor is a heavy-duty, two-stage rotary screw air compressor engineered for high-pressure drilling and industrial applications. With a free air delivery of 25 m³/min and working pressure of 35 bar, it delivers reliable compressed air for water well drilling, mining, and construction. Powered by a Cummins diesel engine, it combines fuel efficiency with rugged performance in remote jobsites. Its advanced screw airend, intelligent control system, and durable chassis ensure continuous operation with minimal maintenance. The LGCY-45/25-37/35 is ideal for DTH drilling, sandblasting, and pipeline testing where high pressure and large air volume are critical. Kaishan's global service network supports fast parts delivery and technical assistance, making this compressor a dependable choice for demanding B2B operations.
Best For
Technical Specifications
| Model | LGCY-45/25-37/35 |
| Free Air Delivery | 25 m³/min |
| Working Pressure | 35 bar |
| Engine | Cummins diesel engine |
| Air Outlet Port | G1.5×1, G3/4×1 |
| Weight | 4,500 kg |
| Dimension (L×W×H) | 4,200×1,800×2,500 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
35 bar
Free Air Delivery
25 m³/min
Weight
4,500 kg
Dimension (L×W×H)
4,200×1,800×2,500 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
25 m³/min free air delivery at 35 bar for high-pressure drilling
Two-stage rotary screw airend for high efficiency and durability
Cummins diesel engine for reliable power and low fuel consumption
Intelligent control system with automatic protection and fault diagnosis
Rugged tandem-axle chassis for stable towing and job site mobility
Designed for high ambient temperatures and high-altitude operation
Applications
📍 Water Well Drilling
High-pressure air is required for DTH hammer drilling in water well construction.
Solution: The LGCY-45/25-37/35 delivers 25 m³/min at 35 bar, ensuring fast penetration and efficient hole cleaning.
📍 Mining Exploration
Mining sites need reliable air for drilling blast holes and powering pneumatic tools.
Solution: Its rugged design and Cummins engine provide continuous operation in remote mining locations.
📍 Construction & Quarrying
Construction projects require portable air for rock drilling and concrete breaking.
Solution: The tandem axle and compact footprint allow easy towing between sites, with high air output for multiple tools.
📍 Sandblasting & Pipeline Testing
Industrial cleaning and pipeline testing demand oil-free, high-pressure air.
Solution: Advanced oil separation ensures clean air, while the high pressure suits pipeline pigging and sandblasting.
LGCY Series Models
Compare specifications across the series to find the right model.
| ☑ | Model | Model | Free Air Delivery | Working Pressure | Engine | Air Outlet Port | Inquire |
|---|---|---|---|---|---|---|---|
| LGCY-45/25-37/35This model | LGCY-45/25-37/35 | 25 m³/min | 35 bar★ | Cummins diesel engine | G1.5×1, G3/4×1 | Get a Quote | |
| LGCY-33/35 | LGCY-33/35 | 33 m³/min (1,165 CFM) | 35 bar (507 psi) | Cummins or Yuchai diesel engine | G2×1, G1×1 | Get a Quote | |
| LGCY-33/35A | LGCY-33/35A | 33 m³/min (1,165 CFM) | 35 bar (508 psi) | Cummins or Yuchai diesel engine | G1.5×1, G3/4×1 | Get a Quote | |
| LGCY-26/25 | LGCY-26/25 | 26 m³/min (918 CFM) | 25 bar (362 psi) | Cummins diesel engine | G2×1, G1×1 | Get a Quote | |
| LGCY-26/25K | LGCY-26/25K | 26 m³/min (918 CFM) | 25 bar (362 psi) | Cummins / Yuchai diesel engine | G1.5×1, G3/4×1 | Get a Quote | |
| LGCY-27/25-29/18 | LGCY-27/25-29/18 | 27 m³/min at 25 bar, 29 m³/min at 18 bar | 25 bar / 18 bar | Cummins or Yuchai diesel engine | G1.5×1, G3/4×1 | Get a Quote | |
| LGCY-25/23-27/18K | LGCY-25/23-27/18K | 25 m³/min (883 CFM) | 23 bar (334 psi) | Cummins / Yuchai diesel engine, 18K series | G1.5×1, G3/4×1 | Get a Quote | |
| LGCY-23/23-25/18K | LGCY-23/23-25/18K | 23 m³/min (812 CFM) | 23 bar (334 psi) | Cummins / Yuchai diesel engine | G1.5 × 1, G3/4 × 1 | Get a Quote | |
| LGCY-33/25 | LGCY-33/25 | 33 m³/min (1,165 CFM) | 25 bar (362 psi) | Cummins or Yuchai diesel engine | G1.5×1, G3/4×1 | Get a Quote | |
| LGCY-33/25K | LGCY-33/25K | 33 m³/min (1,165 CFM) | 25 bar (362 psi) | Cummins or Yuchai diesel engine | G2×1, G3/4×1 | Get a Quote | |
| LGCY-21/21-23/18 | LGCY-21/21-23/18 | 21 m³/min (740 CFM) | 21 bar (305 psi) | Cummins / Yuchai diesel engine | G1.5×1, G3/4×1 | Get a Quote | |
| LGCY-23/23-25/18 | LGCY-23/23-25/18 | 23 m³/min | 18 bar | Cummins / Yuchai | G1.5×1, G3/4×1 | Get a Quote | |
| LGCY-19/21-21/18K | LGCY-19/21-21/18K | 19 m³/min | 21 bar / 18 bar | Cummins / Yuchai diesel engine | G1.5×1, G3/4×1 | Get a Quote | |
| LGCY-19/21-21/18 | LGCY-19/21-21/18 | 21 m³/min (740 CFM) at 18 bar / 19 m³/min (670 CFM) at 21 bar | 18 bar (261 psi) / 21 bar (305 psi) | Cummins or Yuchai diesel engine, 6-cylinder, turbocharged | G1.5×1, G3/4×1 | Get a Quote | |
| LGCY-19/21-21/18X | LGCY-19/21-21/18X | 21 m³/min (740 CFM) | 18 bar (261 psi) | Cummins / Yuchai diesel engine | G1.5×1, G3/4×1 | Get a Quote | |
| LGCY-39/25 | LGCY-39/25 | 39 m³/min (1,377 CFM) | 25 bar (362 psi) | Cummins or Yuchai heavy-duty diesel | G1.5×1, G3/4×1 | Get a Quote | |
| LGCY-39/25A | LGCY-39/25A | 39 m³/min | 25 bar | Cummins / Yuchai diesel engine | G2×1, G1×1 | Get a Quote | |
| LGCY-17/18-18/15T | LGCY-17/18-18/15T | 17 m³/min (600 CFM) | 18 bar (261 psi) | Cummins or Yuchai diesel engine | G1.5×1, G3/4×1 | Get a Quote | |
| LGCY-17/18-18/15TK | LGCY-17/18-18/15TK | 17 m³/min (600 CFM) | 18 bar (261 psi) | Cummins / 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-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-15/18-17/12T | LGCY-15/18-17/12T | — | — | — | — | Get a Quote | |
| LGCY-45/25-37/35V | LGCY-45/25-37/35V | 45 m³/min (1,590 CFM) | 25 bar (362 psi) | Cummins or Yuchai diesel engine | G2×1, G1×1 | 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 | |
| LCGC-29/23 (crawler base) | LCGC-29/23 (crawler base) | 29 | 2.3 | — | G2×1, G³/₄×1 | 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
- Two-stage rotary screw airend
- Cummins diesel engine
- Intelligent control panel
- Oil separator and filtration system
- Air-cooled radiator and cooling fan
- Tandem-axle chassis with towbar
- Intake valve and unloading system
- Exhaust system with silencer
Working Principle
The Kaishan LGCY-45/25-37/35 operates on the principle of rotary screw compression. A diesel engine drives the airend, where two intermeshing helical screws rotate to trap and compress air. In this two-stage model, air is compressed in the first stage, cooled, and then further compressed in the second stage to reach 35 bar. The compressed air passes through an oil separator to remove lubricant, and a cooler reduces the air temperature before it exits the outlet. An intelligent controller monitors pressure, temperature, and engine speed, adjusting the intake valve to match air demand. This ensures efficient fuel use and prevents over-pressurization. The direct-drive or gear-drive system minimizes energy loss, while the robust construction allows continuous duty in harsh environments. The result is a reliable supply of high-pressure air for demanding applications.
Detailed Features
- ▸High-pressure 35 bar output for DTH drilling
- ▸Large 25 m³/min air delivery for high productivity
- ▸Fuel-efficient Cummins engine with global service support
- ▸Two-stage compression for improved efficiency
- ▸Intelligent control with auto fault diagnosis
- ▸Rugged chassis for highway towing and off-road mobility
- ▸Designed for high altitude and high temperature environments
- ▸Easy maintenance access with centralized service points
Packaging & Shipping
The Kaishan LGCY-45/25-37/35 is shipped in a protective wax coating and securely fastened on a flat rack or in a 40FR container. For bulk orders, units can be loaded onto bulk carriers or Ro-Ro vessels. Standard delivery time is 30-45 days after deposit, depending on order quantity. Ports of shipment include Shanghai, Ningbo, or Qingdao, China. Custom packaging and shipping marks are available upon request.
After-Sales Service
Kaishan offers a 12-month warranty or 2000 hours (whichever comes first) on the LGCY-45/25-37/35. A 24-hour technical support hotline is available for troubleshooting. We provide on-site installation and commissioning guidance, as well as operator training. Genuine spare parts are stocked in regional warehouses for fast delivery. Our global service network ensures timely maintenance and repair support.
Frequently Asked Questions
What is the free air delivery and working pressure of the LGCY-45/25-37/35?+
The LGCY-45/25-37/35 delivers a free air delivery of 25 m³/min at a working pressure of 35 bar. These figures make it suitable for high-pressure DTH drilling and large air volume applications.
What engine powers the LGCY-45/25-37/35?+
The LGCY-45/25-37/35 is powered by a Cummins diesel engine. The two-stage rotary screw airend works with this engine for high-pressure output.
What equipment can run on the air supply of the LGCY-45/25-37/35?+
With 25 m³/min at 35 bar, the LGCY-45/25-37/35 can supply DTH hammers and other high-pressure drilling tools. The air outlet ports are G1.5×1 and G3/4×1.
Where can the LGCY-45/25-37/35 be used?+
The LGCY-45/25-37/35 is used for water well drilling, mining exploration, construction and quarrying, and sandblasting and pipeline testing. It is designed for high ambient temperatures and high-altitude operation.
How is the LGCY-45/25-37/35 transported and shipped?+
The LGCY-45/25-37/35 is shipped in a protective wax coating and securely fastened on a flat rack or in a 40FR container. Standard delivery time is 30-45 days after deposit, depending on order quantity, with ports of shipment including Shanghai, Ningbo, or Qingdao, China.
What warranty and support come with the LGCY-45/25-37/35?+
Kaishan offers a 12-month warranty or 2000 hours (whichever comes first) on the LGCY-45/25-37/35. A 24-hour technical support hotline is available for troubleshooting, and genuine spare parts are stocked in regional warehouses.
What are the weight and dimensions of the LGCY-45/25-37/35?+
The LGCY-45/25-37/35 weighs 4,500 kg and measures 4,200×1,800×2,500 mm (L×W×H). It is built on a rugged tandem-axle chassis for stable towing and job site mobility.
Related Insights
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Where This Machine Is Used
Is This Rig Right for My Project?
Answer seven questions about your hole, depth and rock — get a matched rig, compressor, hammer, bit and rod.
Compatible Drilling Rigs
Rigs this air supply can drive, matched on air demand and working pressure.
Best air-supply match shown first — the rest are still compatible.
Top matches
KQLG-115
- Hole range
- 90–152 mm
- Drilling depth
- 25 m
- Air demand
- 12–25 m³/min
KG520
- Hole range
- 105–152 mm
- Drilling depth
- 25 m
- Air demand
- 15–22 m³/min
KG430
- Hole range
- 90–152 mm
- Drilling depth
- 25 m
- Air demand
- 13–20 m³/min
Show 3 more compatible rigs(Other compatible rigs)
KG420B
- Hole range
- 90–130 mm
- Drilling depth
- 25 m
- Air demand
- 10–17 m³/min
Marked “lower range only” means the rig's upper air demand exceeds this unit's 25 m³/min, so it works with smaller hole sizes or a second compressor.
Need Technical Support?
Request information and get a quote from our engineers.
Recommended System
Rig + air compressor + drilling tools matched to your project. Get pre-matching advice from our engineers.
Recommended Equipment Configuration
Matched from real machine parameters — rig, compressor, hammer, bit and rod working as one system.
KG550
- Hole range
- 115–254 mm
Why matched
Covers the lower range of the required 15 bar / 35 m³/min air demand — this unit is rated 35 bar / 25 m³/min, so pair it with smaller hole sizes or add a second compressor.
K8
- Hole range
- 195–254
- Air flow
- 12–31 m³/min
- Working pressure
- 10+ bar
- Bit shank
- K8** / COP84/DHD380
Why matched
Hole range 195–254 mm covers your requirement 115–254 mm.
K6
- Hole range
- 152–300
- Pressure class
- 高风压 (High pressure)
Why matched
Hole range 152–300 mm covers your requirement 115–254 mm.
76mm Drill Rods
- Rod spec
- Φ76 / Φ89 / Φ102 mm
Why matched
Matches the rig's official rod specification Φ76 / Φ89 / Φ102 mm.
System requirement: 35 bar / 25 m³/min · 115–254 mm
