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Diesel Portable Screw Air Compressor

The ZIQI GMD Series Portable Diesel Screw Air Compressor (3.5m³/min - 35m³/min) is a heavy-duty power solution engineered specifically for mining, tunneling, sandblasting, and field exploration. We understand the critical pain point of remote operations: "Downtime is Loss." That is why the GMD Series is built from the ground up with the core standards of "Rugged Durability and Ultra-Low Failure Rates."
Working Powerr
32 - 400 kW
Free Air Deliveryr
3.2 - 33 m³/min
Working Pressurer
0.7 - 2.5 MPa (7 - 25 bar)
Transmissionr
Flexible Direct Drive
Cooling Methodr
Air-Cooling
Diesel Portable Screw Air Compressor
Diesel Portable Screw Air Compressor
Diesel Portable Screw Air Compressor
Diesel Portable Screw Air Compressor
Diesel Portable Screw Air Compressor
Diesel Portable Screw Air Compressor
Diesel Portable Screw Air Compressor
Diesel Portable Screw Air Compressor
Diesel Portable Screw Air Compressor
Diesel Portable Screw Air Compressor
Diesel Portable Screw Air Compressor
Diesel Portable Screw Air Compressor
Diesel Portable Screw Air Compressor
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Product Details Product Applications


★ Heavy Duty · Diesel Powered

ZIQI GMD Diesel Portable Screw Compressor

Cummins / Yuchai Engine · Direct Drive · 50°C Tropical Rated · 23 Models from 35 to 522 kW
23
Models Available
35 – 522 kW
70
m³/min Max Air Flow
2,472 CFM
50°C
Continuous Operation
Tropical Rated
0%
Power Loss
Direct Drive

Why ZIQI Diesel Portables Lead the Field

For open-pit mining and infrastructure projects, fuel economy and mechanical reliability are paramount. The ZIQI GMD Series achieves this by integrating world-class diesel engines (Cummins / Yuchai / Yanmar) with our proprietary large-diameter air ends — the same German-technology airend platform used in our stationary two-stage compressors.

Our Direct Drive system ensures 100% transmission efficiency, eliminating gear wear entirely. Compared to standard portable units, ZIQI delivers higher air volume per liter of fuel and guarantees stable operation in extreme conditions — from -10°C cold starts to +50°C tropical heat. The oversized independent cooling system with 30% extra surface area makes the GMD the preferred choice for contractors in the Middle East, Africa, and Southeast Asia. For oil-free portable air, see our oil-free diesel range.

Core Hardware — Built for the Harshest Sites
Tier-1 global components only. No compromises on the engine or air end.
Powerful Heart🚜

Cummins / Yuchai Engine

Powered by world-renowned heavy-duty diesel engines. Chosen for massive torque reserve, exceptional fuel economy, and ease of global maintenance with parts available in 180+ countries.

  • Service: Global warranty — parts in 180+ countries

  • Climate: Cold start at -10°C, continuous at +50°C

  • Tech: Advanced turbocharging for stable high-torque output

  • Brands: Cummins / Yuchai / Yanmar / Xichai options

German Tech⚙️

German-Tech Air End + Direct Drive

Large-diameter rotor design with proprietary profile — the same compression technology platform used across our stationary screw compressor range. Direct coupling eliminates gears entirely.

  • Drive: High-elastic direct coupling — 0% power loss

  • Durability: Designed for 24/7 continuous heavy load

  • Efficiency: Constant, stable discharge pressure

  • Savings: $0 gear maintenance over entire machine life

🌪️

Multi-Level Filtration

Heavy-duty multi-stage air filtration blocks 99.9% of dust and impurities, protecting engine and air end in harsh mining and sandblasting environments.

❄️

Oversized Cooling System

Independent modular cooler with 30% larger surface area. Stable operation in 50°C tropical heat. For post-compression treatment, see our air treatment equipment.

🖥️

Intelligent Control

Micro-computer logic system auto-adjusts engine speed to real-time demand, saving fuel and reducing noise. Open-architecture — no proprietary lock-in.

Built for These Applications
From quarries to pipelines — wherever diesel portable air power is needed.
⛏️Mining & QuarryingDTH drilling, ore extraction, open-pit operations
🔩Water Well DrillingHigh-pressure DTH at 15-25 bar for deep boreholes
🏗️Construction & InfrastructureJackhammers, breakers, concrete spraying, tunneling
🛢️Oil & Gas / PipelinePipeline purging, sandblasting, pipeline testing

Tell us your CFM, pressure, and jobsite conditions — we'll recommend the exact GMD model.

Get Free Sizing QuoteWhatsApp Engineer
Standard Portable vs ZIQI GMD
See the measurable difference in mechanical build, efficiency, and long-term cost.
Feature Standard Portable Compressor ZIQI GMD Series
Diesel Engine Unbranded / Tier-3 Chinese engines Cummins / Yuchai / Yanmar (global warranty)
Transmission Gear drive — 2-3% power loss, gear replacement every 8,000 hrs Direct drive — 0% power loss, zero gear maintenance
Cooling System Standard size — rated max 40°C ambient Oversized +30% surface area — rated 50°C continuous
Fuel Consumption
(75 kW @ 8 bar full load) 		~22 L/h typical ~18 L/h — 18% fuel saving
Chassis & Frame Standard sheet metal High-strength towing traction bar, heavy-duty axle
Air Filtration Single-stage paper filter Multi-stage heavy-duty — 99.9% dust removal
Control System Basic analog gauges Micro-computer PLC — auto speed adjust, fault diagnosis
Two-Stage Option Not available on most brands GMD-T series — 15-20% better fuel efficiency at 12+ bar
5-Year Gear Maintenance $4,000 – $8,000 (gear sets + labor) $0 — no gears to replace
How to Size a Portable Compressor
Three steps to the right model for your jobsite.
1

Calculate Tool Consumption (CFM / m³/min)

Identify the total air consumption of your pneumatic tools (jackhammers, drill rigs, sandblasters). Always add a 25% safety margin for pressure drops in long hoses.

2

Determine Operating Pressure (Bar)

Standard construction tools require 7-8 bar. DTH water well drilling typically requires 15-25 bar. Sandblasting needs 10-13 bar.

3

Account for Altitude and Temperature

Diesel power drops ~3% per 300m altitude. In extreme heat, cooling capacity is critical. Not sure which model fits? Contact our engineers for a free sizing calculation.

Full Technical Specifications
Single-Stage (GMD Standard) and Two-Stage (GMD-T High Efficiency) models.

GMD Standard Series

Single Stage
Series Power Pressure (bar) Air Delivery Engine Weight (kg)
kW HP m³/min CFM
GMD-35 34.6 47 7 5.0 176 Yanmar 1060
GMD-41 41 55 7 / 8 / 10 3.6 – 5.2 127 – 183 Xichai 1060
GMD-55 55 74 7 / 8 / 10 / 12 4.5 – 7.0 158 – 247 Xichai 1400
GMD-58 60 81 7 / 8 / 10 / 13 4.5 – 5.9 158 – 208 Cummins 1550
GMD-74 74 100 10 / 20 5.7 – 7.3 201 – 257 Cummins / Xichai 1550 – 1750
GMD-93 93 – 97 126 – 131 7 / 8 / 10 9.0 – 11.0 317 – 388 Cummins 2100
GMD-96 96 129 7 / 8 / 10 / 13 / 15 8.1 – 11.5 286 – 406 Xichai 2100
GMD-97 97 130 5 / 7.6 / 8 / 9.8 / 11.5 8.0 – 17.0 282 – 600 Cummins 2050
GMD-110 110 149 10 / 11.3 8.0 – 10.8 282 – 381 Cummins 2200
GMD-118 118 158 7 / 8 / 10 / 12 / 13 11.0 – 15.5 388 – 547 Yuchai 3050
GMD-132 132 177 8 / 10 14.0 – 16.0 494 – 565 Cummins 3100 – 3200

GMD-T High Efficiency Series

Two Stage Compression
Series Power Pressure (bar) Air Delivery Engine Weight (kg)
kW HP m³/min CFM
GMD-93T 93 126 7 / 8 / 20 7.2 – 11.5 254 – 406 Cummins 2000 – 2350
GMD-96T 96 129 10 / 12 10.2 – 11.5 360 – 406 Xichai 2350
GMD-110T 110 149 10 11.5 406 Cummins 2350
GMD-118T 118 158 8 / 10 / 12 / 15 10.5 – 16.2 370 – 572 Yuchai 3350
GMD-132T 132 177 8 / 10 / 13 / 20 10.0 – 18.0 353 – 635 Cummins 3200 – 4000
GMD-148T 148 198 7 / 8 / 10 / 13 15.4 – 19.2 543 – 678 Xichai 4000 – 4300
GMD-154T 154 207 14 14.3 505 Cummins 4300
GMD-162T 162 217 7 / 8 / 10 / 13 16.0 – 23.2 565 – 819 Xichai 4350
GMD-194T 194 263 10 / 13 / 15 19.0 – 23.1 670 – 815 Cummins 4600
GMD-239T 239 325 10 26.5 935 Cummins 5800
GMD-257T 257 345 8 / 12 28.5 – 33.5 1006 – 1183 Xichai 5700 – 5800
GMD-522T 522 709 8 70.0 2472 Cummins 9500

* Air delivery varies based on selected pressure configuration. All power values verified against master spec sheet. Specifications subject to change. Contact our engineers for exact configuration and pricing.

Ready to Deploy? Get Your GMD Quote in 24 Hours

Tell us your air demand (CFM or m³/min), operating pressure (bar), and jobsite conditions. We'll recommend the exact model and deliver a quote within one business day.

Request QuoteWhatsApp Engineer
Frequently Asked Questions
What engines are used in ZIQI portable compressors?
The ZIQI GMD series uses engines from Cummins, Yuchai, Yanmar, and Xichai. These are chosen for high torque output, exceptional fuel efficiency, and comprehensive global service networks with parts available in 180+ countries.
Can this compressor work in high temperatures or tropical climates?
Yes. The GMD features an oversized, independent modular cooling system with 30% more surface area than standard designs. It ensures stable continuous operation at up to 50°C ambient — tested and deployed across the Middle East, Africa, and Southeast Asia.
Why use Direct Drive instead of Gear Drive for portable compressors?
Gear drive systems lose 2-3% of engine power through gear friction and require gear set replacement every 8,000 hours ($2,000-$4,000 per replacement). Our high-elastic direct drive coupling transmits 100% of engine power with zero gear wear — saving $4,000-$8,000 in maintenance costs over 5 years.
What is the difference between the GMD Standard and GMD-T Series?
The GMD Standard uses single-stage compression — simpler and cost-effective for general construction. The GMD-T uses two-stage compression with intercooling, delivering 15-20% more air per liter of fuel. Choose GMD-T for high-pressure demands (12+ bar) like deep DTH drilling.
How many CFM do I need for a DTH drilling rig?
It depends on hole diameter and hammer size. A typical 3-inch DTH hammer needs about 250 CFM at 17 bar. A 4-inch hammer needs 350+ CFM at 20 bar. A 6-inch hammer can require 600+ CFM at 25 bar. Always add a 25% safety margin for hose pressure drops. For DTH drilling, consider our GMD-T two-stage models which deliver higher pressure at better fuel efficiency.
What is the fuel consumption of a 185 CFM diesel portable compressor?
A typical 185 CFM (approximately 5 m³/min) diesel portable compressor consumes between 18-25 liters per hour at full load, depending on the brand, engine efficiency, and drive system. ZIQI GMD models with direct drive typically consume around 18 L/h — approximately 18% less than gear-driven competitors — because zero power is lost through gear friction.
Can a diesel portable compressor work at high altitude?
Yes, but naturally aspirated diesel engines lose approximately 3% power per 300 meters of altitude gain. At 3,000m, expect 10-12% less output. Solutions: choose a turbocharged engine (all ZIQI GMD models are turbocharged), or select one model size larger to compensate. Our engineers can calculate the exact derating for your altitude and recommend the optimal model.
What is the difference between single-stage and two-stage portable compressors?
Single-stage compresses air in one step — simpler, lighter, and more affordable. Two-stage compresses twice with intercooling between stages, producing cooler, drier air with 15-20% better fuel efficiency, especially at higher pressures (12+ bar). If your application needs high pressure (DTH drilling, sandblasting at 13+ bar), two-stage is the more cost-effective choice over the machine's lifetime.
Related Products
⚙️Stationary Screw Compressor7.5–630 kW factory installation🟢Oil-Free Diesel PortableClass 0 air for sensitive applications💧Air Treatment EquipmentDryers, filters, tanks, piping📞Contact ZIQIFree sizing & technical support

* All power values verified against master spec sheet (V3). Air delivery varies by pressure configuration. Specifications subject to change. Contact ZIQI for exact configuration and pricing.

GMD Series Diesel Portable Compressor — Specifications

Powered by Cummins & Yuchai Engines · 34.6 kW – 522 kW

GMD Standard Series

Single Stage Compression
Series Power Class Pressure Options
(bar)		 Air Delivery Range Engine
Brand		 Weight
(kg)
kW HP m³/min cfm
GMD-35 34.6 47 7 5.0 176 Yanmar 1060
GMD-41 41 55 7 / 8 / 10 3.6 - 5.2 127 - 183 Xichai 1060
GMD-55 55 74 7 / 8 / 10 / 12 4.5 - 7.0 158 - 247 Xichai 1400
GMD-58 60 81 7 / 8 / 10 / 13 4.5 - 5.9 158 - 208 Cummins 1550
GMD-74 74 100 10 / 20 5.7 - 7.3 201 - 257 Cummins / Xichai 1550 - 1750
GMD-93 93 - 97 126 - 131 7 / 8 / 10 9.0 - 11.0 317 - 388 Cummins 2100
GMD-96 110 149 7 / 8 / 10 / 13 / 15 8.1 - 11.5 286 - 406 Xichai 2100
GMD-97 110 149 5 / 7.6 / 8 / 9.8 / 11.5 8.0 - 17.0 282 - 600 Cummins 2050
GMD-110 110 149 10 / 11.3 8.0 - 10.8 282 - 381 Cummins 2200
GMD-118 132 179 7 / 8 / 10 / 12 / 13 11.0 - 15.5 388 - 547 Yuchai 3050
GMD-132 140 190 8 / 10 14.0 - 16.0 494 - 565 Cummins 3100 - 3200
* Air delivery varies based on the selected pressure. Specifications subject to change.

GMD-T High Efficiency Series

Two Stage Compression
Series Power Class Pressure Options
(bar)		 Air Delivery Range Engine
Brand		 Weight
(kg)
kW HP m³/min cfm
GMD-93T 93 126 7 / 8 / 20 7.2 - 11.5 254 - 406 Cummins 2000 - 2350
GMD-96T 110 149 10 / 12 10.2 - 11.5 360 - 406 Xichai 2350
GMD-110T 110 149 10 11.5 406 Cummins 2350
GMD-118T 132 179 8 / 10 / 12 / 15 10.5 - 16.2 370 - 572 Yuchai 3350
GMD-132T 140 - 194 190 - 263 8 / 10 / 13 / 20 10.0 - 18.0 353 - 635 Cummins 3200 - 4000
GMD-148T 154 209 7 / 8 / 10 / 13 15.4 - 19.2 543 - 678 Xichai 4000 - 4300
GMD-154T 162 220 14 14.3 505 Cummins 4300
GMD-162T 191 259 7 / 8 / 10 / 13 16.0 - 23.2 565 - 819 Xichai 4350
GMD-194T 194 263 10 / 13 / 15 19.0 - 23.1 670 - 815 Cummins 4600
GMD-239T 239 325 10 26.5 935 Cummins 5800
GMD-257T 264 359 8 / 12 28.5 - 33.5 1006 - 1183 Xichai 5700 - 5800
GMD-522T 522 709 8 70.0 2472 Cummins 9500
* "T" series utilizes a Two-Stage compression air end, providing higher air delivery and superior fuel efficiency.
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