📦 Drilling Air Compressors
Kaishan KSZJ-27/23-30/17K Portable Diesel Screw Air Compressor
Model: KSZJ-27/23-30/17K
The Kaishan KSZJ-27/23-30/17K portable diesel screw air compressor delivers reliable high-pressure air for demanding construction and mining applications. With a free air delivery of 27 m³/m
Best For
Technical Specifications
| Model | KSZJ-27/23-30/17K |
| Free Air Delivery | 27 m³/min @ 23 bar / 30 m³/min @ 17 bar |
| Working Pressure | 17-23 bar |
| Engine | Cummins / Yuchai diesel engine, 180-220 HP |
| Air Outlet Port | G1.5×1, G3/4×1 |
| Weight | 2,800 kg |
| Dimension (L×W×H) | 3,200 × 1,800 × 2,100 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
17-23 bar
Free Air Delivery
27 m³/min @ 23 bar / 30 m³/min @ 17 bar
Weight
2,800 kg
Dimension (L×W×H)
3,200 × 1,800 × 2,100 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 pressure up to 23 bar for DTH drilling
Dual flow rates (27 m³/min @ 23 bar / 30 m³/min @ 17 bar)
Energy-saving screw airend with low noise
Durable diesel engine with cold-start capability
Automatic engine speed control for fuel efficiency
Heavy-duty chassis for easy transport and stability
Applications
📍 Water Well Drilling
Requires high-pressure air (15-25 bar) to drive DTH hammers and remove cuttings from boreholes.
Solution: The KSZJ-27/23-30/17K delivers up to 23 bar pressure, ensuring efficient penetration in hard rock formations and faster drilling cycles.
📍 Geothermal & Exploration Drilling
Needs continuous, reliable air supply for deep drilling and sampling in varying geological conditions.
Solution: With dual pressure settings and robust construction, the compressor maintains stable airflow even at high altitudes or extreme temperatures, reducing downtime.
📍 Pipeline Testing & Purging
Pipeline integrity testing requires dry, oil-free compressed air at high pressure to detect leaks and clean lines.
Solution: The compressor's high-pressure output (up to 23 bar) and precise pressure control allow safe and effective testing, while its portability enables use across remote pipeline sections.
📍 Mining & Quarrying
Mining operations demand rugged equipment that can operate 24/7 in dusty, harsh environments to power drills and pneumatic tools.
Solution: The KSZJ series features heavy-duty filters and a protective canopy, ensuring long service life and minimal maintenance in abrasive conditions.
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 |
|---|---|---|---|---|---|---|---|
| KSZJ-27/23-30/17KThis model | KSZJ-27/23-30/17K | 27 m³/min @ 23 bar / 30 m³/min @ 17 bar★ | 17-23 bar | Cummins / Yuchai diesel engine, 180-220 HP | 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-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-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-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-23/23-25/18K | 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 |
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
- Screw airend (Kaishan patented rotor profile)
- Diesel engine (Cummins/Yuchai)
- Oil separator tank
- Air aftercooler and oil cooler
- Air filter with pre-cleaner
- Microprocessor control panel
- Heavy-duty skid frame with lifting eyes
- Safety valves and pressure gauges
Working Principle
The Kaishan KSZJ-27/23-30/17K operates on the rotary screw compression principle. Two intermeshing helical rotors (male and female) rotate in opposite directions within a precision-machined chamber. As air enters the inlet, it is trapped between the rotor lobes and the housing. The rotation reduces the volume of the trapped air, progressively increasing its pressure. Oil is injected into the compression chamber to seal the clearances, lubricate the rotors, and absorb the heat generated during compression. The oil-air mixture then passes through a separator tank, where the compressed air is cleaned of oil. The hot compressed air is further cooled by an aftercooler before being discharged through the outlet valve. The diesel engine drives the airend via a direct coupling or gearbox, and an electronic controller modulates engine speed to match air demand, optimizing fuel efficiency and extending component life.
Detailed Features
- ▸High-efficiency screw airend with low energy consumption
- ▸Dual pressure settings for versatility
- ▸Automatic idle and load control to save fuel
- ▸Large capacity fuel tank for extended operation
- ▸Easy access to service points for quick maintenance
- ▸Corrosion-resistant canopy (optional)
- ▸Emergency stop and safety shutdown systems
- ▸Hour meter and service indicators
Packaging & Shipping
The Kaishan KSZJ-27/23-30/17K is packed in a robust wooden crate or exported with a steel frame and shrink wrap for sea freight. The unit is secured with bolts and protected against moisture and corrosion. Standard delivery is via 40-foot open-top or flat-rack container, depending on dimensions. The loading port is typically Shanghai or Qingdao, China. Lead time is 30-45 days after receiving the deposit. Full documentation including packing list, commercial invoice, and certificate of origin is provided.
After-Sales Service
Kaishan provides comprehensive after-sales support for the KSZJ-27/23-30/17K. The compressor comes with a standard 12-month warranty covering manufacturing defects. Our global service network offers 24-hour response for emergency technical support. We provide free operator training at our factory or via video conference. Spare parts are available from regional warehouses, ensuring rapid delivery. Preventive maintenance kits and extended warranty options are also available to maximize uptime.
Frequently Asked Questions
What is the free air delivery and working pressure of the KSZJ-27/23-30/17K?+
The KSZJ-27/23-30/17K delivers 27 m³/min at 23 bar and 30 m³/min at 17 bar, with a working pressure range of 17-23 bar. These dual flow rates let the compressor match different DTH drilling air demands.
What engine powers the KSZJ-27/23-30/17K?+
The KSZJ-27/23-30/17K uses a Cummins or Yuchai diesel engine rated at 180-220 HP. The durable diesel engine includes cold-start capability and automatic engine speed control for fuel efficiency.
What equipment can run on the air supply from the KSZJ-27/23-30/17K?+
The KSZJ-27/23-30/17K supplies 27 m³/min at 23 bar or 30 m³/min at 17 bar through a G1.5×1 and G3/4×1 air outlet port. This high-pressure air suits DTH hammers and other drilling tools requiring up to 23 bar.
Which applications suit the KSZJ-27/23-30/17K?+
The KSZJ-27/23-30/17K is used for water well drilling, geothermal and exploration drilling, pipeline testing and purging, and mining and quarrying. Its heavy-duty chassis provides easy transport and stability on site.
How is the KSZJ-27/23-30/17K packaged and shipped?+
The KSZJ-27/23-30/17K is packed in a robust wooden crate or exported with a steel frame and shrink wrap for sea freight, secured with bolts and protected against moisture and corrosion. Standard delivery is via 40-foot open-top or flat-rack container, with the loading port typically Shanghai or Qingdao, China, and lead time 30-45 days after receiving the deposit.
What warranty and after-sales support come with the KSZJ-27/23-30/17K?+
The KSZJ-27/23-30/17K comes with a standard 12-month warranty covering manufacturing defects. Kaishan's global service network offers 24-hour response for emergency technical support, free operator training at the factory or via video conference, and spare parts from regional warehouses.
What are the dimensions and weight of the KSZJ-27/23-30/17K?+
The KSZJ-27/23-30/17K measures 3,200 × 1,800 × 2,100 mm and weighs 2,800 kg. The heavy-duty chassis supports easy transport and stability during drilling operations.
How does the KSZJ-27/23-30/17K save fuel during operation?+
The KSZJ-27/23-30/17K uses automatic idle and load control together with automatic engine speed control to save fuel. Its high-efficiency screw airend is designed for low energy consumption and low noise.
Related Insights
Related Projects
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 27 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 17 bar / 27 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: 17 bar / 27 m³/min · 115–254 mm
