德耐尔节能科技（上海）股份有限公司 · DENAIR
Shanghai headquarters, with a Pinghu production base
Denair Energy Saving Technology (Shanghai) Co., Ltd. develops and supplies compressed-air and industrial-gas equipment. Its brand dates to 2009; the company profile records November 2024 NEEQ listing, code 874402.
- Headquarters
- Jinshan · Shanghai
- Production base
- Pinghu · Zhejiang
Pinghu's official 2024 industrial-enterprise evaluation, published in August 2025, names 德耐尔能源装备有限公司. This identifies the local industrial operation. An equipment order should still name its legal seller, assembly/test location and model.
Start with the application
Three routes to an air supply, with different purchase decisions
DA direct-driven screw
Stationary oil-injected air. Match pressure and supply frequency to the demand profile, then size treatment and cooling.
Compare DA-30+ duties →DWW dry oil-free screw
Two-stage dry compression. Specify oil, moisture and particle requirements at the point of use, including downstream treatment.
Compare DWW-45 duties →DACY diesel portable
Mobile air without fixed power. Match simultaneous tool demand, hose losses, engine suffix and transport configuration.
Compare DACY0507 A / B →The wider portfolio includes centrifugal air, vacuum pumps, process compression and nitrogen/oxygen generation. Those projects need their own flow, pressure, gas composition and system selections.
DA-30+ · 30 kW installed motor · Direct drive
Use the DA capacity at the actual pressure and frequency
| Pressure | 50 Hz | 60 Hz |
|---|---|---|
| 7 barg | 6.07 | 6.04 |
| 8 barg | 6.04 | 6.01 |
The brochure lists air cooling, 1650 × 1050 × 1300 mm, 915 kg and an R2 outlet. Reserve maintenance space and a heat-discharge route in addition to the package footprint.
The “+” selection has its own table. Other DA models, cooling variants and motor sizes need their own performance and installation sheets.
DA family specifications and enquiry →DWW-45 · 45 kW installed motor · Two-stage dry screw
Pressure changes the usable oil-free air capacity
| Pressure | 50 Hz | 60 Hz |
|---|---|---|
| 7 barg | 7.70 | 7.16 |
| 8 barg | 6.73 | 6.48 |
| 10 barg | 5.10 | 5.37 |
The air-cooled reference measures 2500 × 1600 × 2080 mm, weighs 1960 kg and has a DN50 outlet. Its FAD uses the same 1 bara / 20°C reference.
Define the quality at the process
Dry oil-free compression addresses oil introduction in the compression chamber. A food, electronics or pharmaceutical process also needs its specified pressure dew point, particles and any microbiological controls.
Request the offered model's air-quality test/certificate, with its measured scope and conditions. Itemise the receiver, dryer, filters and condensate handling needed to deliver the required point-of-use quality.
W means water cooling. Its utilities, weight and outline need a separate check. The DWW-e brochure is another series; its figures should stay separate.
DWW model details and treatment boundary →DACY0507 · 5.00 m³/min at 7 barg
The same headline air duty can come with a different engine
DACY0507A
Yanmar 4TNV94L
34.6 kW rated engine power
DACY0507B
Weichai WP3.2G61E347
45 kW rated engine power
Both catalog examples list 900 kg, two wheels, a 70 L fuel tank and three G¾ outlets. Their 2210 × 1450 × 1365 mm dimensions exclude the towbar.
Keep engine model and suffix on the offer and spare-parts list. Agree emissions/destination documents, service access, brake/towing arrangement and full transport dimensions.
DACY portable air details →Make the offer comparable before comparing price
Name the selection
DA/DWW model plus pressure, voltage/frequency and cooling; or DACY model plus engine suffix, tool duty and transport configuration.
Draw the supply boundary
Mark receiver, dryer, filters, drains, controls, pipework/hoses, installation and commissioning as included or separately supplied.
Request order-linked documents
Obtain a pressure-matched selection sheet, package/input ratings, outline/service drawing, test schedule, air-quality scope and destination documents.
Plan service at the destination
Agree manuals, consumables, engine/service parts, maintenance access, commissioning support and the warranty responsibilities in the offer.
Attach the measured operating profile for a stationary station, or the tool list and hose arrangement for a portable project. This gives the correct equipment team a defined duty to quote.
Prepare a DENAIR equipment enquiryQuestions that change a DENAIR selection
Is the Shanghai headquarters the same place as the manufacturing base?
The company identifies headquarters in Jinshan, Shanghai and a production base in Pinghu, Zhejiang. Name the legal seller and assembly/test location in the particular equipment order.
Can I use the 50 Hz airflow when my supply is 60 Hz?
Use the matching column. For example, DWW-45 at 8 barg is listed at 6.73 m³/min for 50 Hz and 6.48 m³/min for 60 Hz. Obtain the offered configuration's current selection sheet.
Does an oil-free compressor make the whole system dry and sterile?
The compression method does not define all downstream quality. Specify oil, pressure dew point and particles at the point of use, plus process-specific microbiological requirements where applicable, and agree the corresponding treatment and validation scope.
Are DACY0507A and B interchangeable?
The reviewed table gives the same 5.00 m³/min at 7 barg, but different engine models and rated engine power. Keep the suffix, parts and destination requirements tied to the offered unit.
Do the portable dimensions include the towbar?
The DACY table explicitly excludes it. Request a complete transport drawing, including the towbar, wheel/brake arrangement, lifting points and offered shipping configuration.