Umarex PAC 900 Performance Air Compressor

• Manufacturer: Umarex
• Model: PAC 900 Performance Air Compressor
• Manufacturer item number: 2.0049
• Compressor type: High-pressure PCP air compressor
• Power supply: 230V AC mains
• Maximum filling pressure: 300 bar
• Maximum filling pressure: 4,350 psi
• Maximum supported reservoir volume: 1 litre
• Reference filling time: Approximately 7 minutes 2 seconds for 0.2 litres at 190 bar
• Noise level: Approximately 78 dB
• Automatic shut-off: Yes
• Pressure adjustment: 1-bar increments
• Display: Digital operating display
• Overheat protection: Yes
• Compressor lubrication: Oil-free
• External water cooling: Not required
• Air filtration: Replaceable sponge filter
• High-pressure connection: Foster
• Included adapters: 1/8", M10 and M10x1
• Dimensions (L × W × H): 228 × 155 × 267 mm
• Weight: Approximately 6.6 kg
• Intended use: Filling compatible PCP airgun reservoirs

Filling times vary depending on reservoir size, starting pressure, selected final pressure and operating conditions. The published filling time is a manufacturer reference figure rather than a guaranteed result for every fill.

The PAC 900 is designed for stationary operation from a suitable 230V mains electricity supply, making it an excellent choice for PCP owners who normally refill their air rifles at home or at a shooting range with access to mains power.

Unlike battery-powered compressors, the PAC 900 does not rely on rechargeable battery packs or require batteries to be charged before use.

This makes it particularly convenient for regular filling in a garage, workshop or dedicated airgun maintenance area.

The compressor has a compact design with an integrated carrying handle, allowing it to be repositioned or transported between suitable locations when required.

The PAC 900 does not feature a rechargeable battery system or a 12V vehicle power connection. It requires a suitable mains electricity supply during operation.

Always use the correct electrical connection equipment and operate the compressor on a stable, dry surface with adequate ventilation.

The PAC 900 offers a maximum filling pressure of 300 bar (4,350 psi), making it suitable for a wide range of modern PCP air rifles and air pistols with compatible high-pressure reservoirs.

Umarex specifies a reference filling time of approximately 7 minutes and 2 seconds for a 0.2-litre reservoir at 190 bar.

This makes the PAC 900 substantially faster than the PAC ECO Silent, which prioritises quiet operation rather than rapid filling.

The PAC 900 is designed for compatible compressed-air reservoirs with a maximum capacity of 1 litre per filling cycle.

This makes it suitable for many standard PCP airgun cylinders and smaller reservoirs, although it is not intended for filling large diving cylinders or high-capacity external air bottles beyond its stated limit.

Actual filling times depend on the reservoir's starting pressure, total volume, target pressure and operating conditions.

For users who regularly refill larger reservoirs or require greater filling capacity, the PAC 1100 and PAC 1400 support reservoirs up to 3 litres.

Always follow the airgun or reservoir manufacturer's specified maximum filling pressure. A reservoir rated for 200 bar must never be filled to 300 bar simply because the compressor is capable of reaching that pressure.

The PAC 900 features an adjustable automatic shut-off system that allows the required filling pressure to be selected in precise 1-bar increments.

Once the selected pressure is reached, the compressor automatically stops the filling process.

The digital display provides a clear interface for selecting and monitoring the required operating parameters.

This is particularly useful for PCP owners who have several air rifles with different recommended filling pressures.

For example, an air rifle rated for 200 bar should be filled only to the pressure specified by its manufacturer, even though the PAC 900 is capable of producing up to 300 bar.

Always confirm the correct target pressure before starting the filling process and monitor the compressor throughout operation.

The automatic shut-off system is an operating convenience and safety feature but does not replace the need for supervision or correct use.

The Umarex PAC 900 features an oil-free compressor design, eliminating the need for routine compressor oil changes.

It also operates without an external water-cooling tank or pump, reducing the amount of preparation and equipment required before filling.

Integrated cooling and overheat protection help manage operating temperatures during use.

The compressor includes a replaceable sponge air filter, which should be inspected and maintained in accordance with the manufacturer's operating instructions.

Keep the compressor's ventilation openings clean and unobstructed, and position the unit on a firm, dry surface with adequate airflow.

Oil-free and water-free operation means the compressor does not require oil or external cooling water as operating consumables. It does not guarantee that compressed air is entirely free from atmospheric moisture.

Regularly inspect the high-pressure filling hose, seals, connections and electrical cable for wear, damage or leaks.

Never operate the compressor with damaged electrical components, leaking high-pressure fittings or blocked ventilation openings.

The PAC 900 is designed for filling compatible pre-charged pneumatic airguns and suitable high-pressure compressed-air reservoirs within its specified pressure and capacity limits.

The supplied high-pressure filling hose uses a Foster connection, a widely used fitting type for PCP airgun charging equipment.

Adapters for 1/8", M10 and M10x1 connections are included, helping accommodate many common PCP filling systems.

Some air rifles use manufacturer-specific filling probes or alternative connection types. These may require an additional compatible adapter.

Before filling, check that the reservoir is approved for high-pressure compressed air, that the connection is correctly fitted and that the selected pressure does not exceed the reservoir manufacturer's maximum filling pressure.

The PAC 900 supports compatible reservoirs up to 1 litre in capacity. Do not use it to fill reservoirs exceeding the manufacturer's specified limit.

If you are unsure whether the PAC 900 is suitable for your air rifle, contact Bamfords Online for compatibility advice.

Umarex rates the PAC 900 at approximately 78 dB during operation.

This is louder than the PAC ECO Silent, which is rated at approximately 60 dB, but the PAC 900 offers substantially faster filling performance.

The PAC 900 is therefore particularly suitable for users who prioritise efficient filling and mains-powered convenience over minimum operating noise.

Its compact size and approximately 6.6 kg weight make it relatively straightforward to move between suitable filling locations.

For users who need a compressor that can operate away from mains electricity, the PAC 400, PAC 1100 or PAC 1400 may be more suitable, depending on the available power source.

Always operate the compressor in a suitable environment with adequate ventilation and follow the manufacturer's guidance regarding operating time and cooling intervals.

Always read the supplied Umarex operating instructions before using the PAC 900. The following is a general overview and does not replace the manufacturer's procedure.

• Position the compressor on a firm, level and dry surface with adequate ventilation.
• Inspect the filling hose, mains cable, seals and reservoir for damage.
• Connect the appropriate filling adapter securely to the compatible PCP reservoir.
• Connect the compressor to a suitable 230V mains electricity supply.
• Set the required filling pressure according to the airgun or reservoir manufacturer's instructions.
• Start the filling process using the compressor controls.
• Monitor the pressure, temperature and operating condition throughout the fill.
• Allow the compressor to stop when the selected pressure is reached.
• Follow the manufacturer's pressure-release procedure before disconnecting the filling hose.
• Inspect and maintain the compressor and filling accessories as instructed.

Never leave the compressor operating unattended, disconnect a pressurised hose or exceed the pressure rating of the reservoir.

The standard manufacturer package includes:

• 1 × Umarex PAC 900 Performance Air Compressor
• 230V mains connection cable
• High-pressure filling hose with Foster connection
• 1/8" filling adapter
• M10 filling adapter
• M10x1 filling adapter
• Spare sealing rings
• Replacement filter sponges
• Operating instructions

A rechargeable battery, battery charger, 12V vehicle connection cable, PCP airgun and separate air cylinder are not included.

Check the mains plug configuration supplied with your unit before connecting it to a UK socket.

The Umarex PAC 900 Performance Air Compressor is supplied with a 2-year (24-month) warranty covering manufacturing defects in materials and workmanship under normal use, subject to the applicable warranty terms.

Damage caused by misuse, incorrect operation, accidental damage, unauthorised modifications or failure to follow the manufacturer's maintenance instructions is not covered.

If you experience a problem with your compressor during the warranty period, please contact Bamfords Online with your order details. We'll be happy to assist with your warranty claim.

Your statutory consumer rights remain unaffected.

What is the maximum pressure of the Umarex PAC 900?

The PAC 900 has a maximum filling pressure of 300 bar (4,350 psi).

Does the PAC 900 run from mains electricity?

Yes. The compressor operates from a suitable 230V mains electricity supply.

Does it include a rechargeable battery?

No. The PAC 900 is mains-powered and does not include a rechargeable battery or battery charger.

Can the PAC 900 run from a car battery?

No. The PAC 900 does not feature a 12V vehicle power connection.

How quickly does the PAC 900 fill a PCP airgun?

Umarex specifies a reference filling time of approximately 7 minutes and 2 seconds for a 0.2-litre reservoir at 190 bar. Actual filling times depend on the reservoir and operating conditions.

Can it fill a 300-bar PCP air rifle?

Yes, provided the air rifle's reservoir is specifically rated for filling to 300 bar and the correct compatible connection is used.

What is the maximum reservoir capacity?

The PAC 900 is designed for compatible compressed-air reservoirs up to 1 litre in capacity.

Can it fill a large diving cylinder?

No. The PAC 900 is intended for compatible PCP reservoirs within its 1-litre capacity limit, not large diving cylinders.

Does the PAC 900 stop automatically?

Yes. The compressor features adjustable automatic shut-off in precise 1-bar increments.

Does it require compressor oil?

No. The PAC 900 is designed for oil-free operation.

Does it require external water cooling?

No. An external water-cooling system is not required.

Does the PAC 900 have an air filter?

Yes. It features a replaceable sponge air filter.

Does it have overheat protection?

Yes. The PAC 900 includes integrated overheat protection.

How noisy is the PAC 900?

Umarex lists an operating noise level of approximately 78 dB.

What filling connections are included?

The compressor uses a Foster high-pressure connection and includes 1/8", M10 and M10x1 adapters.

Does it come with a UK mains plug?

The mains plug configuration should be checked for the UK-supplied package. A suitable UK plug adapter may be required.

How much does the compressor weigh?

Approximately 6.6 kg.

What are the dimensions of the PAC 900?

The compressor measures approximately 228 × 155 × 267 mm.

What warranty does the Umarex PAC 900 have?

The PAC 900 is supplied with a 2-year (24-month) warranty covering manufacturing defects under normal use, subject to the applicable warranty terms.

What is the difference between the PAC 900 and PAC ECO Silent?

The PAC 900 prioritises faster filling, with a reference time of approximately 7 minutes 2 seconds and a noise level of 78 dB. The PAC ECO Silent is much quieter at approximately 60 dB but has a significantly longer reference filling time of approximately 72 minutes.

What is the difference between the PAC 900 and PAC 1100?

The PAC 900 is a compact mains-powered compressor with a maximum pressure of 300 bar and a reservoir capacity of 1 litre. The PAC 1100 supports mains or suitable 12V vehicle power, produces up to 320 bar and supports reservoirs up to 3 litres.

Which Umarex PAC compressor should I choose?

The PAC 900 is an excellent choice for regular mains-powered filling at home or in the workshop. Choose the PAC ECO Silent if reduced noise is the main priority, the PAC 400 for battery-powered portability, the PAC 1100 for mains and 12V vehicle operation or the PAC 1400 for rapid filling with rechargeable battery capability.