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GREEN POWERQingdao · Industrial Equipment
Industry Solutions

Metal Processing Industry

Industrial pumping and PSA gas generation for metal processing applications. Define fluid or gas demand, purity, pressure, temperature and duty cycle before equipment sizing.

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Tell us the medium or gas, flow, pressure or head, temperature and duty cycle. We confirm the achievable range and propose a configuration for your site.

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Key Selection Considerations

  • Gas demand and application — Nitrogen for cutting, shielding or heat treatment and oxygen for combustion enhancement are separate duties, and the required flow for each should be established separately. The nitrogen series covers 1–2000 Nm³/h and the oxygen series 1–200 Nm³/h.
  • Required gas purity — Nitrogen purity of 95%-99.999% N₂ and oxygen purity of 93% ±3% O₂ are both selectable, and the process requirement sets the point on that range.
  • Supply pressure — Nitrogen is delivered at up to 0.65 MPa (confirm selected model) and oxygen at 0.4–0.5 MPa. The required working pressure at the point of use determines the duty point.
  • Operating temperature for heat-transfer duties — Where thermal oil is used for process heating or drying, the series covers -20°C to 350°C at 1–12.5 bar and 1–500 m³/h.
  • Fluid or gas properties — Composition, temperature and any moisture or contamination limits should be confirmed before equipment is proposed.
  • Duty cycle, installation and site requirements — Continuous or batch operation, available utilities and footprint affect the configuration and determine whether buffer capacity is required.

Engineering Approach

Gas and thermal duties are defined separately: the required flow, purity and working pressure for each gas, and the temperature and flow for any heat-transfer loop, are established before a system is proposed. To raise a recommendation, send the demand, purity and pressure for each gas or fluid, operating hours, load profile, available utilities and site conditions.

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Frequently Asked Questions

Which gas is used for cutting and shielding?

Nitrogen is normally used for cutting and shielding duties. The PSA nitrogen series covers 1–2000 Nm³/h at 95%-99.999% N₂ purity, with outlet pressure of up to 0.65 MPa (confirm selected model).

What purity is needed for metal processing?

Purity is set by the process: cutting, shielding, heat treatment and combustion enhancement have different requirements. It should be confirmed before a generator is sized.

Can one generator supply both nitrogen and oxygen?

No. Nitrogen and oxygen generation are separate systems. Where both are needed, the demand for each should be established independently.

What pressure can the equipment deliver?

Nitrogen outlets are rated up to 0.65 MPa (confirm selected model) and oxygen 0.4–0.5 MPa. The required pressure at the point of use should be confirmed against distribution losses.

Is thermal oil heating used in metal processing?

Where process heating or drying is required, thermal oil circulation can be used. The series covers 1–500 m³/h from -20°C to 350°C at 1–12.5 bar.

What information is needed to size a gas generator?

Required flow and purity for each gas, working pressure, operating hours and load profile, together with the available power supply and compressed-air capacity for PSA nitrogen.

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