Changshu Southeast
Compare piston frames, diaphragm isolation and hydrogen filling configurations, with dated project evidence and an actual technical agreement.
CHANGSHU · PROCESS PISTON / DIAPHRAGM / HYDROGEN
The company is 丰电金凯威（苏州）压缩机有限公司. Changshu’s Science and Technology Bureau reported its move into the high-tech district in September 2020; relocation is distinct from incorporation. Its official portfolio separates piston frames, diaphragm equipment and hydrogen production/filling applications.
GOVERNMENT REPORT · SEPTEMBER 2025
These are conditions reported for a specific project test. Shaft power is not motor nameplate or whole-station input; the figures are not guarantees for every FKW configuration.
INDUSTRY ASSOCIATION · AUGUST 2026
A China General Machinery Industry Association article, explicitly sourced from the manufacturer, reports commissioning of GD-500/14-200 for hydrogen filling.
The model identifies an application. Its digits are not decoded into ratings, and a manufacturer-sourced republication is not an independent factory audit.
GAS PATH → CONTAMINATION LIMIT → OPERATING CASES
Give composition, inlet/discharge cases, reference flow and allowable contamination. Select cylinders, stages, speed and driver from a matched calculation, with pulsation and cooling requirements.
| Frame force | Maximum motor |
|---|---|
| 30 kN | 75 kW |
| 100 kN | 800 kW |
| 320 kN | 3,300 kW |
| 800 kN | 5,600 kW |
Mechanical ceilings, not actual absorbed power. Obtain the selected frame’s pressure/cylinder sheet rather than assigning a merged family cell.
Full frame entries and enquiry conditions →
The diaphragm separates the gas path from the lubricated drive. It does not purify the incoming gas. Specify composition, moisture/particle limits, acceptable contamination and wetted-material compatibility.
The selected-model datasheet and test agreement determine the order’s ratings.
Diaphragm model and supply review →SOURCE STORAGE → COMPRESSOR → BUFFER / DISPENSING
Specify starting and minimum source pressure, replenishment, daily demand and peak filling events. Compare capacity and input across that curve, rather than quoting only the favourable starting condition.
3–20 MPaG inlet · 200–2,000 Nm³/h · 30–200 kW motor · 1–2 stages.
10–30 MPaG inlet · 100–1,000 Nm³/h · 30–185 kW motor · 1–2 stages.
Separate catalogue configuration ranges: endpoints are not a simultaneous operating guarantee. Production-feed figures in Nm³/min are distinct from these filling figures in Nm³/h.
Review filling duty and package boundary →Composition range, contamination limits, inlet temperature, pressure convention, all flow cases and reference conditions, pressure cycles and operating schedule.
Actual model, stages/cylinders or diaphragm arrangement, absorbed power and motor, utilities, cooling, operating limits and protective/control functions.
P&ID, dimensions/mass, foundation and nozzle loads, lifting and service access, vent/recovery layout, electrical and destination compliance documents.
Quality plan, agreed mechanical/tightness/gas-duty tests and tolerances, site acceptance, commissioning attendance, spares and warranty start/exclusions.
No. It is the listed maximum motor ceiling for an800kNframe. Actual absorbed and package input need the matched gas and inlet/discharge calculation.
No. Lubricant isolation is not gas purification. Define inlet quality, materials, leakage and acceptance at the actual package boundary.
Do not assume so. Require capacity and input over the source-storage pressure curve, together with replenishment and peak demand.
Select piston, diaphragm or hydrogen filling; include source pressure, composition, reference flow and acceptance conditions.
Prepare a FENDY technical RFQSpecification pages
| Duty | Write on the RFQ |
|---|---|
| 30 bar oil-free compressor | Specify whether 30 bar is gauge or absolute pressure, where it is required and how much air must be supplied at that point. A 30 bar working duty does not, by itself, identify a compressor architecture, motor size or air-quality class. |
| Process gas compressor manufacturers in China | Process gas is not plant air. Molecular weight, suction pressure, discharge pressure and flow size the machine. A kW from an air catalogue is unused. |
| 40 bar PET compressor | PET blowing at 40 bar(g) is a high-pressure oil-free duty. Cavities, bottle volume and recovery pressure size the skid — not the word “PET compressor”. |
| Compressor for PET bottle blowing | Bottle blowing is a high-pressure oil-free process. The blower OEM’s pressure and the cavity count size the compressor, not the word PET. |
Information reviewed 2026-10-08. Specifications apply only to the models and conditions stated.
Jinkaiwei: Compare piston frames, diaphragm isolation and hydrogen filling configurations, with dated project evidence and an actual technical agreement.
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