Official Export Subsidiary of Kaishan Group (Est. 1956) | Quzhou Manufacturing Base

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Kaishan DTH Drilling Rigs

Heavy-duty surface crawlers and integrated rigs for open-pit mining, quarry blasting, and slope stabilization. High penetration rate and anti-jamming hydraulic system.

Kaishan LGY Series Portable Screw Air Compressor (8–18 Bar)

Kaishan LGY Series Portable Screw Air Compressors deliver 6.2–46.0 m³/min (219–1,621 CFM) at 8–18 bar (116–261 psi). Powered by 37–250 kW motors with patented SKK airends, they provide heavy-duty pneumatic power for drilling and mining.
Long-Life SKK Airend: Patented rotor profile offers 40,000–80,000 hours overhaul life.
Flexible Working Pressures: Available in 8 bar, 10 bar, 13 bar, and 17–18 bar series.
Durable Portable Design: Vibration-free operation without foundation requirements.
  • Product Detail Introduction

Core Engineering Features & Performance Advantages

Patented SKK / SKY Screw Airend

Features Kaishan's patented asymmetric rotor profile with precision hydrodynamic bearings. Incorporates fewer components and zero vulnerable wearing parts, delivering an overhaul interval of 40,000 to 80,000 operating hours.

Dynamic Inertia Power Balance

Rotary screw compression eliminates unbalanced reciprocating inertial forces. The unit runs smoothly at high speeds without requiring a reinforced concrete foundation, minimizing operating footprint and weight.

Intelligent Unattended Automation

Equipped with an advanced electronic control panel featuring 0%–100% stepless capacity regulation, multi-parameter digital monitoring, automatic fault alarms, and shutdown protections for unattended jobsite safety.

Enforced Wide-Speed Volumetric Efficiency

Positive displacement geometry ensures that free air delivery (FAD) remains consistent and unaffected by exhaust back-pressure fluctuations, maintaining high adiabatic efficiency across wide speed ranges.

Kaishan LGY Series Technical Specifications by Pressure Class

Model Working pressure Air consumption Motor power Connector Dimension Weight
Bar Psi m³/min CFM (kW/HP) mm kg
LG-6.2/8GY 8 116 6.2 219 37 / 50 1-G¾, 1-G1½ 3120*1445*1480 1120
LG-7.0/8GY 8 116 7 247 45 / 60 1-G¾, 1-G1½ 3423*1445*1480 1200
LG-10/8GY 8 116 10 371 55 / 75 1-G¾, 1-G1½ 3390*1585*1550 1200
LG-13/8GY 8 116 13 458 75 / 100 1-G2, 1-G1¾ 2700*1700*1700 1750
LG-11.6/10GY 10 145 11.6 410
LG-9.3/13GY 13 190 9.3 328
LG-16/8GY 8 116 16 583 90 / 125 1-G2, 1-G1¾ 2730*1680*1800 1910
LG-13/10GY 10 145 13 459
LG-11.6/13GY 13 190 11.6 410
LG-20/8GY 8 116 20 706 110 / 150 1-G2, 1-G1¾ 3065*1835*2000 3115
LG-16/10GY 10 145 16 565 3070
LG-13.5/13GY 13 190 13.5 476 3030
LG-22/8GY 8 116 22 775 132 / 180 1-G2, 1-G1¾ 3065*1835*2000 3150
LG-20/10GY 10 145 20 706 3115
LG-16/13GY 13 190 16 565 3070
LG-13/17GY 17 247 13 459 132 / 180 1-G2, 1-G1¾ 3445*1600*2030 3450
LG-27/8GY 8 116 27 954 160 / 220 1-G2, 1-G1¾ 3950*1820*2285 5000
LG-23/10GY 10 145 23 811 3910*1820*2285 3660
LG-20/13GY 13 190 20 705 3630
LG-30/8GY 8 116 30 1057 185 / 250 1-G2, 1-G1¾ 4050*1950*2440 5000
LG-21/13GY 13 190 21 740 3910*1820*2285 3900
LG-17/18GY 18 261 17 599 185 / 250 1-G2, 1-G1¾ 4115*1820*2295 4200
LG-30/8GBY 8 116 30 1057 200 / 265 1-G2, 1-G1¾ 4050*1950*2440 5000
LG-22/13GBY 13 190 22 775 3910*1820*2285 3900
LG-22/17Y 17 246 22 775 200 / 265 1-G2, 1-G1¾ 3950*1820*2250 5000
LG-35/8GY 8 116 35 1234 200 / 265 1-G2, 1-G1¾ 4050*1950*2440 5000
LG-30/10GY 10 145 30 1057
LG-27/13GY 13 189 27 952
LG-40/8GY 8 116 40 1410 220 / 295 1-G2, 1-G1¾    
LG-40/8GBY 8 116 40 1410 250 / 335 1-G2, 1-G1¾    
LG-35/10GY 10 145 35 1234 250 / 335 1-G2, 1-G1¾    
LG-46/8GY 8 116 46 1621
LG-40/10GY 10 145 40 1410

Recommended Downstream Equipment Matching

  • DTH Drilling Rigs: 17–18 Bar units (13–22 m³/min) provide ideal pressure and volume for Kaishan KG, KT, and KW series water well and mining drills using 4" to 8" DTH hammers.
  • Pneumatic Rock Drills (Jackhammers): 8–10 Bar units (6.2–13 m³/min) efficiently power clusters of 2 to 6 handheld or air-leg rock drills (e.g., YT24, YT28).
  • Industrial Sandblasting & Spraying: 8 Bar high-flow models (16–30 m³/min) maintain stable pressure for shipyard sandblasting nozzles and structural coating operations.
  • Pipeline Pressure Testing: 13–18 Bar configurations deliver rapid pressurization for municipal gas, water, and district heating piping networks.

Primary Industrial Applications

  • Mining & Quarries: Blast-hole percussion, secondary splitting, and mineral exploration pneumatic power.
  • Deep Water Well Drilling: Air flushing, reverse circulation, and pneumatic casing advancement.
  • Shipbuilding & Marine Repair: Dry-dock surface preparation, grit blasting, and pneumatic hull fastening.
  • Municipal & Civil Construction: Road cutting, bridge foundation piling, tunnel ventilation, and pipeline trenching.

Frequently Asked Questions (FAQ)

Q: How do I select the right pressure (8, 10, 13, or 18 Bar) for my jobsite?

A: Select 8 Bar (116 Psi) for jackhammers, air picks, and general sandblasting; choose 10–13 Bar for tunnel drifting and medium-pressure rock drills; select 17–18 Bar (247–261 Psi) for deep water well drilling and high-pressure DTH hammer blast-hole operations.

Q: Can the LGY series operate reliably in high-temperature or dusty environments?

A: Yes. Equipped with heavy-duty multi-stage air intake filters and high-efficiency oil-air coolers, LGY compressors run continuously in ambient temperatures up to 50°C (122°F) across severe quarry and desert conditions.

 
 
 

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