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H-Drive System Module - HSM SK2

It is a modular, high-pressure hydrogen compression solution tailored for system builders and integrators.

HSM SK2 features dual-stage compression via two hydraulically driven Haskel H-Drive compressors, delivering dependable hydrogen gas compression.

The SK2 model is designed with a separate hydraulic power unit (HPU) and compressor assembly, offering improved layout flexibility for installations with spatial or thermal constraints.

Built to compress gaseous hydrogen to pressures of up to 950 bar, the HSM SK2 is suited for use in a wide range of hydrogen fueling, storage, and industrial applications.

While the core compression hardware is included, additional modules (e.g., for cooling, electrical distribution, and control) are required to complete a fully integrated hydrogen system.

Key features

Dual-Stage Compression with hydraulically driven Haskel H-Drive compressors

Modular Design: Compressor assembly and HPU are physically separated for flexible installation

High Pressure Capability: Configurable up to 500 or 950 bar outlet pressure

Active Fan Cooling for higher thermal performance

Hazard-Protected Equipment Design

Integrated Safety and Monitoring: Includes instrumentation, controls, and gas heat exchangers

Electronic Control System: HMI, ESTOP, OPC-UA, and fault reset features

High Throughput: Up to 106 kg/hr hydrogen at 500 bar

Technical specifications

Electronic control interface: HMI, ESTOP, OPC-UA, LOCAL FAULT RESET

Ingress protzection rating: IP66

Max ambient humidity: EN60204 - 4.4.4 Humidity The electrical equipment shall be capable of operating correctly when the relative humidity does not exceed 50 % at a maximum temperature of +40 °C. Higher relative humidities are permitted at lower temperatures (for example 90 % at 20 °C).

Harmful effects of occasional condensation shall be avoided by design of the equipment or, where necessary, by additional measures (for example built-in heaters, air conditioners, drain holes).
Note, heaters are fitted to each HPU enclosure

Max current in Amps: 4.6A

Max altitude in m: 1000m

Maximum output voltage: 24 VDC

Input voltage: 230VAC

Maximum power: 1kW

Max ambient temperature: 40°C

Min power: 0.5kW

Min ambient temperature: -20°C

Type of cooling: Active fan

Max mass flow (In g/s)

106 kg H2/hr (500bar model)
65kg H2/hr (950 bar model)

Max outlet pressure (in bar): 500 bar or 950 bar depending on model

Max pressure (In bar): 500 bar (inlet pressure)

Compressor type: Hydraulic Piston

Min pressure (In bar): 15 bar (inlet)

H-Drive System Module - HSM SK2