Chunhua · Jiangning · Nanjing
Nanjing Hengda · choose the pressure and lubrication route together
Nanjing Hengda Compressor Co., Ltd. (南京恒达压缩机有限公司) researches, develops and manufactures air compressors. The company describes its Chunhua site and a first-phase office/production area of 26,000 m².
The catalogue separates low-pressure semi-oil-free/oil-lubricated machines, medium/high-pressure routes, water-cooled configurations, boosters and screw equipment, with treatment and receivers. A Jiangsu tax authority report dated October 2023 also identifies the company as an air-compressor developer/manufacturer with export business.
Published low-pressure semi-oil-free category
Start with the demand, then select the named model
The ZW and VW records offer distinct flow/motor configurations. Agree delivery reference conditions and allowable duty cycle, as well as the pressure needed at the user.
ZW · 0.7 MPa references
| ZW-0.11/7 | 0.11 m³/min Motor: 1.1 kW Weight: 140 kg |
|---|---|
| ZW-0.15/7 | 0.15 m³/min Motor: 1.5 kW Weight: 143 kg |
| Both envelopes | 1080 × 425 × 1040 mm |
VW-0.8/9 · 0.9 MPa reference
| Flow / motor | 0.8 m³/min 7.5 kW |
|---|---|
| L × W × H | 1800 × 720 × 1340 mm |
| Weight | 460 kg |
Two motors · explicit power notation
Double-machine configuration needs a control and standby review
| 2-VW-1.6/9 | 1.6 m³/min 2 × 7.5 kW 840 kg 1920 × 1600 × 1385 mm |
|---|---|
| 2-WW-2.5/9 | 2.5 m³/min 2 × 11 kW 1215 kg 2150 × 1770 × 1700 mm |
Ask how the drives start, alternate and stage, and how output changes with one machine stopped. Compare available delivery and the required load before describing the configuration as standby redundancy.
4.0 MPa · two distinct system routes
Keep the WW model and screw/booster package records separate
WW-1.1/40 · oil-free-labelled route
- Published delivery / pressure
- 1.1 m³/min at 4.0 MPa
- Motor power / weight
- 15 kW · 520 kg
- L × W × H
- 1660 × 830 × 1120 mm
Request air quality and performance at the selected duty, alongside the exact lubrication/maintenance instructions.
HD-6/40-BC · integrated screw/booster
- Published delivery / pressure
- 6.0 Nm³/min at 4.0 MPa
- Two drive ratings
- Fixed-frequency screw: 45 kW
Booster: 22 kW - L × W × H / weight
- 2600 × 1700 × 2500 mm
1700 kg
Confirm actual medium, inlet/interstage conditions and complete package scope. Define the normal-volume temperature/pressure basis.
Keep the units: the integrated record uses Nm³/min, while the WW table uses m³/min. Agree reference conditions before comparing delivery. Motor ratings are separate from measured total-package input and part-load behavior.
Industrial/high-pressure references and system requirements →Order the usable air supply, with clear acceptance and service scope
At the point of use
Specify working pressure, oil, dew point and particles at the user. Define dryer/filter/receiver capacity and pressure loss, measurement points and the actual duty. Hengda lists treatment and receiver ranges; the range listing does not define what is included in a machine quote.
For high pressure, review ratings of downstream piping, valves and receivers, relief/protection arrangements and destination requirements. A non-air gas requires an explicit medium/material/cleanliness and hazard review.
At inspection and handover
Request the offered model's current drawings, delivery/reference conditions, leak/pressure and protective-function tests, nameplate/serial traceability and applicable documents. Agree inspection or witnessing and the records delivered with the order.
Hengda publishes separate after-sales and spare-parts functions. Agree actual destination support, startup scope, wear parts, response arrangements and service responsibilities for the project.
Prepare the Hengda duty and system brief
- Low-pressure production air
- Minimum/normal/peak demand, pressure at user, cyclic/continuous load and hours; required air quality and treatment; receiver, motor/starting and location.
- Paired-machine operation
- Staging/alternation requirements, peaks, output needed during service of one machine, starting load and coordinated control.
- High-pressure or boosting
- Actual medium, inlet pressure/temperature and downstream duty; flow reference, cycle times, cooling, electrical supply, pressure-rated system and protection.
- Delivery and acceptance
- Current model/revision, supplied equipment and drawings, test conditions/documents, destination requirements, commissioning and parts/support.
Hengda procurement questions
Can I call low-pressure semi-oil-free equipment Class 0?
Use the manufacturer's category and obtain the applicable air-quality evidence for the offered system and duty. The lubrication label alone does not establish an ISO zero-oil class or a process approval.
Does a double-machine record give full-flow standby?
Confirm output with one machine stopped, your minimum required delivery and the control arrangement. The table's two-motor notation does not establish the required standby capacity.
Can 6.0 Nm³/min be compared directly with 1.1 m³/min?
Obtain both flow reference conditions first, along with the required pressure and actual configuration. Keep normal-volume and other delivery bases explicit.
Does the 45 kW screw drive describe the complete HD-6/40-BC input?
The record separately lists a 22 kW booster drive. Obtain total-package input at the actual duty, including auxiliaries and load-control behavior.