Reliable refrigerated drying for compressed air flows from 1 to 75 m³/min
The LD 10-750 range provides dependable refrigerated air drying across a wide spectrum of compressed air installations. Warm, moisture‑laden inlet air is precooled, chilled to condense water vapour, and passed through an efficient separator and electronic drain before being reheated for safe distribution through the air network.
A compact 3‑in‑1 heat exchanger design minimises internal pressure losses while maintaining consistent drying performance. Proven refrigerant compressors, corrosion‑resistant condensers and stable control logic allow LD dryers to operate reliably under continuous industrial conditions.
The LD 10-750 range is engineered for simple, predictable maintenance. Refrigerant circuits are factory set, so routine service focuses on condenser cleaning, drain operation checks and basic visual inspections. Correct upstream filtration and good installation conditions help maintain long‑term drying performance.
Electronic drains and accessible internal components reduce service time during planned inspections. Maintenance intervals can be adapted to site conditions, allowing reliable operation in both clean compressor rooms and more demanding industrial environments.
By removing moisture before it reaches distribution lines, LD dryers help prevent corrosion, scaling and pneumatic failures, reducing unplanned downtime and protecting downstream equipment. Low internal pressure drop limits additional compressor energy consumption associated with drying.
The wide LD 10-750 size range allows accurate matching to actual air demand, avoiding oversizing and unnecessary energy use. Robust construction, long component life and straightforward maintenance contribute to a low total cost of ownership and dependable long‑term air quality.
Technical information
- LD 10-225
- LD 250-750
| Model | Capacity | Power Supply | Dimension | Weight | Refrigerant Gas | Inlet/Outlet Size | ||
|---|---|---|---|---|---|---|---|---|
| l/min | cfm | m³/h | V/Ph/Hz | LxWxH (mm) | Kg | |||
| LD10 | 1000 | 35 | 60 | 230/1/50 | 354x439x445 | 30 | R134A | G3/4 |
| LD15 | 1500 | 53 | 90 | 230/1/50 | 550x370x800 | 32 | R134A | G1 |
| LD21 | 2100 | 74 | 126 | 230/1/50 | 550x370x800 | 36 | R134A | G1 |
| LD35 | 3500 | 124 | 210 | 230/1/50 | 520x500x800 | 60 | R410A | G1.5 |
| LD45 | 4500 | 159 | 270 | 230/1/50 | 550x600x980 | 68 | R410A | G1.5 |
| LD60 | 6000 | 212 | 360 | 230/1/50 | 550x600x980 | 75 | R410A | G2 |
| LD75 | 7500 | 265 | 450 | 230/1/50 | 550x600x980 | 85 | R410A | G2 |
| LD90 | 9000 | 318 | 540 | 230/1/50 | 900x750x1000 | 120 | R410A | G2 |
| LD115 | 11500 | 406 | 690 | 230/1/50 | 1025x660x1120 | 130 | R410A | G2.5 |
| LD150 | 15000 | 530 | 900 | 230/1/50 | 1025x660x1120 | 135 | R410A | G2.5 |
| LD175 | 17500 | 618 | 1050 | 230/1/50 | 1025x660x1120 | 150 | R410A | G2.5 |
| LD225 | 22500 | 795 | 1350 | 230/1/50 | 1025x660x1120 | 155 | R410A | G2.5 |
Unit performance measured according to ISO 1217, Annex C, ed.4 2009.
Design condition:
- Operating Pressure: 7 bar
- Ambient Temperature: 25℃
- Inlet Air Temperature: 35℃
| Ambient Temperature Correction Factor | |||||
|---|---|---|---|---|---|
| Ambient Temperature (°C) | 25 | 30 | 35 | 40 | 45 |
| Correction Factor | 1 | 0.91 | 0.81 | 0.72 | 0.62 |
| Inlet Air Temperature Correction Factor | ||||||
|---|---|---|---|---|---|---|
| Ambient Temperature (°C) | 30 | 35 | 40 | 45 | 50 | 55 |
| Correction Factor | 1 | 1 | 0.82 | 0.69 | 0.58 | 0.45 |
| Inlet Air Pressure Correction Factor | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Inlet Air Pressure (bar) | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| Correction Factor | 0.9 | 0.97 | 1 | 1.03 | 1.06 | 1.08 | 1.1 | 1.12 | 1.13 |
| Model | Capacity | Power Supply | Dimension | Weight | Refrigerant Gas | Inlet/Outlet Size | ||
|---|---|---|---|---|---|---|---|---|
| l/min | cfm | m³/h | V/Ph/Hz | LxWxH (mm) | Kg | |||
| LD250 | 25000 | 883 | 1500 | 230/1/50 | 1025x660x1120 | 175 | R410A | G2.5 ” |
| LD350 | 35000 | 1236 | 2100 | 400/3/50 | 1133x1000x1700 | 400 | R410A | DN100 FL |
| LD450 | 45000 | 1589 | 2700 | 400/3/50 | 1133x1000x1700 | 410 | R410A | DN100 FL |
| LD500 | 50000 | 1766 | 3000 | 400/3/50 | 1133x1000x1700 | 425 | R410A | DN100 FL |
| LD600 | 60000 | 2119 | 3600 | 400/3/50 | 1644x1000x1883 | 580 | R410A | DN150 FL |
| LD750 | 75000 | 2649 | 4500 | 400/3/50 | 1644x1000x1883 | 600 | R410A | DN150 FL |
Unit performance measured according to ISO 1217, Annex C, ed.4 2009.
Design condition:
- Operating Pressure: 7 bar
- Ambient Temperature: 25℃
- Inlet Air Temperature: 35℃
| Ambient Temperature Correction Factor | |||||
|---|---|---|---|---|---|
| Ambient Temperature (°C) | 25 | 30 | 35 | 40 | 45 |
| Correction Factor | 1 | 0.93 | 0.87 | 0.8 | 0.7 |
| Inlet Air Temperature Correction Factor | ||||||
|---|---|---|---|---|---|---|
| Ambient Temperature (°C) | 30 | 35 | 40 | 45 | 50 | 55 |
| Correction Factor | 1 | 1 | 0.82 | 0.67 | 0.55 | 0.44 |
| Inlet Air Pressure (bar) | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|
| Correction Factor | 0.75 | 0.875 | 1 | 1.08 | 1.15 | 1.22 |
LD 10-750
Download the product brochure
Download the brochure to explore the full details of this Liutech range. Inside, you'll find key product features, technical specifications, available configurations, and insights to help you select the right solution for your compressed air requirements.
Get in touch with us
Contact us to buy your next stationary compressor today
Not sure which compressor to buy?
Contact us for product recommendations, and tailored quotations designed around your operational requirements.
