55-900kw Eco Oil-Free Screw Compressor

To build an eco-friendly manufacturing line that complies with global dual-carbon mandates, buying from certified China 55-900kw Eco Oil-Free Screw Compressor suppliers is the smart choice. DECHUAN's oil-free design eliminates the need for oil disposal, helping global factories meet strict corporate sustainability goals.

Turning Hidden Energy Waste into Real Economic Returns

Over 80% of the electrical energy consumed by an air compressor is converted directly into heat. In standard setups, this thermal energy is simply expelled into the environment via cooling towers or radiators, while the facility spends extra money on natural gas or electricity to heat industrial process water or worker showers.

This 55-900kw Eco Oil-Free Screw Compressor captures this lost heat efficiently:

• Integrated Heat Recovery Skids: Heavy-duty, insulated water loops connect directly to the compressor's thermal circuits to harvest waste heat safely.

• 90°C Hot Water Generation: Produces high-temperature water suitable for winter building heating, boiler preheating, or reverse osmosis systems.

• Dual-Carbon Regulatory Compliance: Reduces reliance on fossil-fuel boilers, lowering your factory's greenhouse gas emissions.

System Performance Matrix

• Displacement Capacity: 4.2 - 148.5 m³/min clean air output

• Power Configuration: 55kW to 900kW scalable configurations

• Water Loop Output Temperature: Consistently above 70°C to 90°C based on plant setup

• Air Quality Certification: TÜV certified CLASS 0 zero-oil trace delivery

ZR/ZT 55-90 (FF) STD

ZR/ZT 75-90 VSD (FF) STD

Performance reference conditions for the unit were measured according to Annex C, 4th edition (2009) of ISO 1217:

· Relative humidity: 0%

· Absolute inlet pressure: 1 bar

· Inlet temperature: 20°C Discharge rate (FAD) was measured at the following operating pressures:

Constant speed type:

·  -7.5 bar type: 7 bar

· -8.6 bar type: 7 bar

· -10 bar type: 9 bar

VSD type:

· -8.6 bar type: 7 bar

· -10.4 bar type: 9 bar

· (2) Class A weighted emission sound pressure level of the workstation (LpWSAd). Measured according to ISO 2151:2004 (using 150 9614/2 sound intensity scanning method). The newly added correction factor is a completely uncertain value (KpAd), conforming to the test code.

· (3) Weight is for reference only; the actual weight supplied shall prevail.

ZR/ZT 110-160 (FF) STD

ZR/ZT 110-160 VSD (FF) STD

According to ISO 1217 Annex C, 4th Edition (2009), the unit performance reference conditions are as follows:

· Relative humidity: 0%

· Absolute inlet pressure: 1 bar

· Inlet temperature: 20°C

Displacement FAD is measured at the following operating pressures:

Constant speed models:

-7.5 bar models: 7 bar

-8.6 bar models: 7 bar

-10 bar models: 9 bar

VSD models:

-8.6 bar models: 7 bar

-10.4 bar models: 9 bar

(2) Class A weighted emission sound pressure level of the workstation (LpWSAd). Measured according to ISO 2151:2004 (ISO 9614/2 sound intensity scanning method). The newly added correction factor KpAd is uncertain, complying with test code.

(3) V1=380V, V2=400V.

(4) Weight is for reference only; actual weight shall prevail.

ZR/ZT 200-275 (FF)

 ZR/ZT 250-315 VSD (FF)

-Relativehumidity:0%

-Absolute inlet pressure: 1bar

-Inlet temperature:20°℃

Discharge rate (FAD) was measured at the following operating pressures

Constant speed type:

-7.5 bar type: 7 bar

-8.6 bar type: 7 bar

-10 bar type: 9 bar

VSDtype:

-8.6 bar type: 7 bar

-10.4 bar type: 9 bar

(2) Class A weighted emission sound pressure level of the workstation (LpWSAd).

Measured according to ISO 2151:2004(using 150 9614/2(sound intensity scanning method).

The newly added correction factor is a completely uncertain value (KpAd), conforming to the test code.

(3) Weight is for reference only; the actual weight supplied shall prevail.

ZR 300-750

ZR 355-900VSD

Performance reference conditions for the unit were measured according to Annex C, 4th edition (2009) of ISO 1217:

· Relative humidity: 0%

· Absolute inlet pressure: 1 bar

· Inlet temperature: 20°C Discharge rate (FAD) was measured at the following operating pressures:

Constant speed type:

·  -7.5 bar type: 7 bar

· -8.6 bar type: 7 bar

· -10 bar type: 9 bar

VSD type:

· -8.6 bar type: 7 bar

· -10.4 bar type: 9 bar

· (2) Class A weighted emission sound pressure level of the workstation (LpWSAd). Measured according to ISO 2151:2004 (using 150 9614/2 sound intensity scanning method). The newly added correction factor is a completely uncertain value (KpAd), conforming to the test code.

· (3) Weight is for reference only; the actual weight supplied shall prevail.

ZR 200X-400X

ZR/ZT 75-160 VSD+

ZR/ZT 75-160 VSD+ FF

Performance reference conditions for the unit were measured according to Annex C, 4th edition (2009) of ISO 1217:

· Relative humidity: 0%

· Absolute inlet pressure: 1 bar

· Inlet temperature: 20°C Discharge rate (FAD) was measured at the following operating pressures:

Constant speed type:

·  -7.5 bar type: 7 bar

· -8.6 bar type: 7 bar

· -10 bar type: 9 bar

VSD type:

· -8.6 bar type: 7 bar

· -10.4 bar type: 9 bar

· (2) Class A weighted emission sound pressure level of the workstation (LpWSAd). Measured according to ISO 2151:2004 (using 150 9614/2 sound intensity scanning method). The newly added correction factor is a completely uncertain value (KpAd), conforming to the test code.

· (3) Weight is for reference only; the actual weight supplied shall prevail.

Real Case Studies from the Field

Pharmaceutical Plant Integration

DECHUAN retrofitted multiple 4500HP centrifugal units at a pharmaceutical facility, integrating our specialized heat exchangers. The system generated hot water up to 90°C while maintaining stable compressor operation. This recovered heat was redirected to preheat boiler feedwater and run reverse osmosis water production, providing significant economic returns.

Coal Sector Bathhouse System

A mining operation retrofitted six 375kW and two 250kW compressors with our secondary constant-temperature water system. The recovered heat replaced high-temperature steam boilers previously used for worker showers, saving thousands of tons of steam annually while meeting all hot water volume requirements.

Factory Quality Assurance & Eco-Certifications

Every 55-900kw Eco Oil-Free Screw Compressor is assembled under a strict environmental management framework. We verify that all materials used—from the low-unloading mechanical valves to the internal stainless steel tube bundles—are sourced and processed sustainably, ensuring a clean lifecycle from our factory to yours.

Environmental Equipment FAQ

Q: How does the heat recovery system lower our plant's overall carbon emissions?

A: Air compression naturally generates significant thermal energy. Instead of venting this heat outside via cooling fans, our system channels it into a secondary plate heat exchanger. This energy can pre-heat boiler water or plant showers, reducing the load on your facility's fossil-fuel heaters.

Q: Can this system be adjusted if our factory's hot water demand changes between summer and winter?

A: Yes. The system features an automated bypass valve. When hot water demand drops during summer, the system redirects excess thermal energy back to standard cooling loops to ensure uninterrupted air production.

Q: Does utilizing the heat recovery system on the 55-900kw Eco Oil-Free Screw Compressor affect its air compression efficiency?

A: No. The internal water circulation loops are balanced using a precise temperature control system. It ensures the compressor's second-stage suction temperatures remain stable, protecting the machine's volumetric efficiency.