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SIP 08256 VSDD Rotary Screw Compressor, Tank Capacity - 160 Litre, Max. Air Pressure - 8 Bar

Product Number: 08256

£2,634.28 £2,582.63

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Variations

08250

08251

08252

08253

08255

08257

SIP 08256 VSDD Rotary Screw Compressor 4kW 160ltr 8 Bar is a variable speed, direct drive screw unit designed for continuous use in small to medium workshops. A 4kW (5hp) IE4 motor on 230v (32A) drives twin parallel rotary screws via a direct drive transmission, delivering 19CFM (530ltr/min) Free Air Delivery at up to 116psi (8bar) into a 160ltr receiver. The gearless drive eliminates belt slip, improves power transfer and reduces component stress, lowering maintenance and energy costs. Inverter control provides soft-start and slope-down functionality, spreading torque evenly on start-up and reducing load as the tank reaches pressure, while automatically adjusting air output to match demand. A heavy-duty silenced cabinet keeps noise to around 65dB(A), and a colour touchscreen display provides real-time diagnostics including receiver pressure, motor voltage, internal temperature, load status and operating hours. Easy access through a single cabinet panel simplifies servicing, and the wheel-mounted all-in-one design offers a compact footprint for mobile or static installation in workshops, automotive bays and light industrial environments.

Key Features:

Direct drive transmission for improved power transfer
Variable speed 4kW motor delivers even power distribution
Heavy-duty silenced cabinet ensures reduced noise operation
Colour touchscreen for real-time diagnostic information
Easy access cabinet panel for maintenance and service
Wheel-mounted all-in-one design for added mobility

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ITEM NO	08256
Input Supply 230v (32A)
Rated Input	4.7kW
Motor Power	4kW (5hp)
IE4 Motor	Yes
Max. Pressure	116psi (8bar)
Free Air Delivery (FAD)	19CFM (530ltr/min)
Receiver Size	160ltr
Cooling Type	Fan Cooled
Transmission Type	Direct Drive
Start-Up Mode	Inverter Soft Start
Refrigerated Dryer	N/A
Outlet Connector	3/4" BSPP
Noise Level	65dB(A)

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Engine Parts	Product Number	Product Name	Recommended Units	Product Price

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Standard Delivery: Channel Island Free
Next Day Delivery Available
Delivery Estimate: 2 to 4 working days
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Technical Specification
PRODUCT NUMBER	05375	F-V51JS72FNM760	05372A	05378A	08220	2456600	08221	2456290
Warranty						12		12
Capacity (L)	200		200	200	270	500	270	200
Drive Size (Inch)	1/2	1/2	1/2	1/2
Maximum Pressure (bar)	10	8	8	8	10	10	10
Power (kW)	2.2	3	4	4	4		5.5
Receiver Size	200ltr		200ltr	200ltr	270ltr		270ltr

Technical

Q 1. What does the SIP 08256 VSDD 4kW 8bar compressor offer?

A. It is a 4kW, 5hp variable speed direct-drive screw compressor with 160ltr receiver, 19CFM FAD and 8bar maximum pressure at 230v.

Q 2. How much free air does the 08256 model deliver?

A. It provides around 19CFM free air, about 530 litres per minute, suitable for higher-demand 8bar workshop operations.

Q 3. Why is direct-drive transmission beneficial on this compressor?

A. Gearless connection through twin parallel screws provides efficient positive drive, reducing slippage, maintenance requirements and power consumption compared to belt-driven compressors.

Q 4. How does variable speed improve compressor performance and efficiency?

A. Inverter control adjusts speed according to demand, ensuring efficient air production, softer starting, controlled slope-down and reduced wear on internal components.

Q 5. For what applications is SIP 08256 particularly suitable?

A. It is ideal for small to medium workshops and automotive, engineering or agricultural environments requiring continuous 8bar air with higher flow.

Q 6. How loud is the VSDD 4kW compressor in operation?

A. The silenced cabinet keeps operational noise at about 65dB(A), supporting comfortable use in indoor workshop settings.

Q 7. How does the 160 litre receiver support continuous use?

A. The receiver ensures a stable air supply, helping meet pressure peaks during operation and reducing frequent start-stop cycling.

Q 8. What monitoring capability does the colour touchscreen provide?

A. It offers real-time insight into operating status, including load state, receiver pressure, motor voltage and internal temperature, supporting quick diagnostics.

Q 9. How is maintenance access designed on SIP 08256?

A. All critical components are reachable through a single cabinet panel, making scheduled maintenance faster and reducing production downtime.

Q 10. What electrical supply is required to power this compressor?

A. It operates from a 230v, 32A single-phase input, appropriate for a 4kW variable-speed drive.

Q 11. Why is an IE4 motor used in this compressor?

A. The IE4 motor delivers higher efficiency than standard ratings, reducing power costs and improving environmental performance for continuous-duty applications.