📦 High-Pressure Air Compressors
Kaishan LGCY-26/25 Portable Diesel Screw Air Compressor
Model: LGCY-26/25
The Kaishan LGCY-26/25 portable diesel screw air compressor delivers 26 m³/min of free air at 25 bar working pressure, making it one of the most powerful models in Kaishan's LGCY series for heavy-duty industrial applications. Designed for mining, water well drilling, quarrying, and large-scale construction, this diesel-driven rotary screw compressor combines high output with reliable Cummins engine power and robust construction. Its two-stage compression system ensures efficient air delivery at high pressure, while the advanced cooling and filtration systems maintain stable performance in demanding environments. The LGCY-26/25 is mounted on a heavy-duty chassis with four-wheel configuration for easy towing across rough terrain, and its weatherproof canopy protects internal components from dust, rain, and extreme temperatures. With low fuel consumption, extended service intervals, and easy maintenance access, it reduces total cost of ownership. Whether you are operating DTH hammers, sandblasting equipment, or multiple pneumatic tools simultaneously, the Kaishan LGCY-26/25 provides the air power you need. It is CE certified and backed by Kaishan's global service network, ensuring fast parts availability and technical support wherever your job site is located.
Best For
Technical Specifications
| Model | LGCY-26/25 |
| Free Air Delivery | 26 m³/min (918 CFM) |
| Working Pressure | 25 bar (362 psi) |
| Engine | Cummins diesel engine |
| Air Outlet Port | G2×1, G1×1 |
| Weight | 4,500 kg |
| Dimension (L×W×H) | 4,200×1,900×2,500 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
25 bar (362 psi)
Free Air Delivery
26 m³/min (918 CFM)
Weight
4,500 kg
Dimension (L×W×H)
4,200×1,900×2,500 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
High free air delivery of 26 m³/min (918 CFM) at 25 bar working pressure for demanding applications
Fuel-efficient Cummins diesel engine with low emissions and reliable cold-start performance
Two-stage rotary screw airend for high efficiency and durable operation
Heavy-duty four-wheel chassis with pneumatic tires for safe towing on rough terrain
Weatherproof powder-coated canopy protects components from dust, rain, and extreme temperatures
Intelligent control panel with automatic shutdown and real-time monitoring for safe operation
Applications
📍 Water Well Drilling
High-pressure air is essential for driving DTH hammers in water well drilling, where deep holes and hard rock formations require consistent 25 bar pressure.
Solution: The LGCY-26/25 delivers 26 m³/min at 25 bar, providing ample air to power large DTH hammers and flush cuttings efficiently, reducing drilling time and fuel costs.
📍 Mining and Quarrying
Blast hole drilling and quarry operations demand reliable, high-volume air compressors that can withstand dust and continuous use.
Solution: With its robust filtration and cooling systems, the LGCY-26/25 operates reliably in dusty environments, powering multiple drills and pneumatic tools simultaneously.
📍 Construction and Infrastructure
Large construction projects require compressed air for sandblasting, concrete spraying, pile driving, and tunnel work.
Solution: The portable design and high output make the LGCY-26/25 ideal for towing between sites, providing consistent air power for various pneumatic equipment.
📍 Oil and Gas Pipeline Testing
Pipeline pressure testing and purging require high-pressure air that is oil-free and reliable.
Solution: The LGCY-26/25 delivers high-pressure air suitable for pipeline testing, with optional aftercoolers and filters to meet oil-free requirements.
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-26/25This model | 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-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-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-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-19/21-21/18 | 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-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-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-15/18-17/12T | LGCY-15/18-17/12T | — | — | — | — | 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-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 | |
| 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
- Cummins diesel engine
- Two-stage rotary screw airend
- Air-oil separator tank
- Cooling system (radiator and oil cooler)
- Intelligent control panel
- Heavy-duty air filter and oil filter
- Four-wheel chassis with drawbar
- Weatherproof canopy
Working Principle
The Kaishan LGCY-26/25 operates on the principle of rotary screw compression, a positive displacement process that uses two intermeshing helical rotors to compress air. The diesel engine drives the airend through a coupling or gearbox, causing the male and female rotors to rotate in opposite directions. As the rotors turn, air is trapped in the spaces between the rotor lobes and the casing. As the rotors mesh, the volume of these spaces decreases, compressing the air. Simultaneously, oil is injected into the compression chamber to lubricate the rotors, seal clearances, and absorb heat. The compressed air-oil mixture then passes through a separator, where oil is removed and returned to the system, while clean air exits through the discharge valve. The two-stage design of the LGCY-26/25 splits compression into two phases: the first stage compresses air to an intermediate pressure, and the second stage further compresses it to the final 25 bar. This reduces thermal load and improves efficiency. A sophisticated cooling system, including radiators and fans, maintains optimal temperatures, while the control panel monitors pressure, temperature, and engine parameters to ensure safe, automatic operation.
Detailed Features
- ▸High pressure 25 bar and large air delivery 26 m³/min
- ▸Fuel-efficient Cummins engine with low emissions
- ▸Two-stage compression for improved efficiency
- ▸Advanced cooling system for hot climates
- ▸Heavy-duty filtration for dusty environments
- ▸Intelligent control with automatic shutdown
- ▸Portable four-wheel design for easy towing
- ▸Weatherproof and corrosion-resistant canopy
Packaging & Shipping
The Kaishan LGCY-26/25 is shipped as a complete unit, securely fastened onto a steel frame and wrapped in protective film to prevent scratches and moisture during transport. For container shipping, the unit can be loaded into a 40-foot flat rack or open-top container, depending on destination and shipping method. Standard production lead time is 30-45 days after order confirmation. We ship from major Chinese ports such as Shanghai, Ningbo, or Qingdao. For urgent orders, expedited production and air freight options are available upon request. All units are inspected and tested before shipment, and a test report and certificate of origin are provided.
After-Sales Service
Kaishan offers a comprehensive warranty of 12 months or 2,000 operating hours (whichever comes first) for the LGCY-26/25, covering major components. Our global service network provides 24-hour technical support via phone or email. We offer on-site installation and commissioning services, as well as operator training to ensure safe and efficient use. Genuine spare parts are available from regional warehouses, with fast delivery to minimize downtime. Regular maintenance kits and service contracts are also available to extend the life of your equipment.
Frequently Asked Questions
What are the free air delivery and working pressure of the LGCY-26/25?+
The LGCY-26/25 delivers a free air delivery of 26 m³/min (918 CFM) at a working pressure of 25 bar (362 psi). The model code follows Kaishan's naming convention, where 26 indicates the air delivery in cubic meters per minute and 25 indicates the working pressure in bar. This combination supports high-pressure, high-volume air demand.
What engine powers the LGCY-26/25 portable diesel screw air compressor?+
The LGCY-26/25 is powered by a Cummins diesel engine. The engine is specified for fuel efficiency, low emissions and reliable cold-start performance. The compressor uses a two-stage rotary screw airend with precision-machined rotors.
What equipment can the LGCY-26/25 supply air to?+
The LGCY-26/25 supplies 26 m³/min (918 CFM) at 25 bar (362 psi), which matches high-pressure air demand such as DTH drilling. The air outlet ports are G2×1 and G1×1. Its two-stage rotary screw airend supports continuous high-pressure air delivery.
Which applications and sites is the LGCY-26/25 suitable for?+
The LGCY-26/25 is applied in water well drilling, mining and quarrying, construction and infrastructure, and oil and gas pipeline testing. It is mounted on a heavy-duty four-wheel chassis with pneumatic tires for towing on rough terrain. A weatherproof powder-coated canopy protects components from dust, rain and extreme temperatures.
How much does the LGCY-26/25 weigh and what are its dimensions?+
The LGCY-26/25 weighs 4,500 kg and measures 4,200×1,900×2,500 mm (L×W×H). The unit is mounted on a heavy-duty four-wheel chassis with pneumatic tires. These figures apply to the portable diesel screw air compressor as shipped.
What control and monitoring features does the LGCY-26/25 have?+
The LGCY-26/25 has an intelligent control panel with automatic shutdown and real-time monitoring. The compressor also uses an advanced cooling system for hot climates and heavy-duty filtration for dusty environments. These features support safe operation on demanding sites.
How is the LGCY-26/25 packaged and shipped?+
The LGCY-26/25 is shipped as a complete unit, securely fastened onto a steel frame and wrapped in protective film to prevent scratches and moisture during transport. For container shipping, it can be loaded into a 40-foot flat rack or open-top container, depending on destination and shipping method. Standard production lead time is 30-45 days after order confirmation.
What warranty and after-sales support come with the LGCY-26/25?+
Kaishan offers a warranty of 12 months or 2,000 operating hours (whichever comes first) for the LGCY-26/25, covering major components. A global service network provides 24-hour technical support via phone or email. On-site installation and commissioning services, operator training and genuine spare parts from regional locations are also available.
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
Show 3 more compatible rigs(Other compatible rigs)
KG430
- Hole range
- 90–152 mm
- Drilling depth
- 25 m
- Air demand
- 13–20 m³/min
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 26 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 25 bar / 26 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: 25 bar / 26 m³/min · 115–254 mm
