UNIMAC ACM-1000s Quiet Air Series 100L 4.5HP Silent Oil-Free Air Compressor

Product Overview

The UNIMAC ACM-1000s is built for buyers who want serious compressed air performance without the noise, servicing, and mess that can come with traditional oil-lubricated or petrol-driven setups.
With its large 100L tank, quiet oil-free design, and strong 4.5HP output, it is designed to suit workshops, garages, sheds, and demanding home or trade-style jobs where reliable air supply really matters.

Why This Air Compressor Stands Out

What makes the ACM-1000s especially appealing is the way it combines serious tank capacity and airflow with quieter, lower-maintenance operation.
It is not just about storing more air. It is also about making regular workshop use easier, cleaner, and more convenient.

Powerful 4.5HP Triple-Motor Setup

At the heart of the ACM-1000s are three twin-cylinder 1.1kW motors delivering a combined 4.5HP output.
That gives the compressor the kind of strength buyers want for repeated air tool use, inflation work, and general workshop jobs where a smaller compressor can start to feel underdone.

Massive 100L Tank Capacity

The 100 litre receiver is one of the biggest practical advantages of this unit.
It gives you a far more substantial reserve of compressed air, which helps keep work moving smoothly and reduces interruptions on longer jobs.

300L/min Free Air Delivery

Airflow is where this machine really starts to separate itself from lighter-duty units.
With a listed free air delivery of 300L/min at 7 bar, it is built to support a broad range of workshop and garage applications with more confidence.

116 PSI Working Pressure

The ACM-1000s runs at a working pressure of 116 PSI, with a restart pressure of 86 PSI.
That gives it practical operating pressure for many common compressed-air tasks while helping the compressor cycle efficiently during use.

Independent Motor Control

One of the smarter features on this model is independent motor start and control.
This is designed to help reduce power surges, avoid accidental overloads, and let you bring the motors online in a more controlled way.

Quiet by Compressor Standards

A standout part of the listing is the quiet-air focus.
UNIMAC describes the unit as producing only 65 dBa, which makes it especially appealing for buyers who want strong compressor performance without the harsh noise often associated with workshop compressors.

Oil-Free, Service-Friendly Design

The oil-free setup is another major plus.
It helps reduce ongoing maintenance and removes the need to deal with oil changes or belt and pulley upkeep, making the compressor easier to live with over time.

Twin Nitto Quick-Connect Outlets

The twin Nitto outlets add useful flexibility because they make it easier to connect a wider range of tools and accessories.
This gives the compressor more practical appeal for workshops that need a versatile, ready-for-work setup.

Easy-to-Read Gauges and Pressure Control

The listing highlights precise tank and line pressure gauges along with automatic pressure control.
These are the sort of practical details that help take the guesswork out of setup and everyday operation.

Portable Design with Easy-Roll Wheels

Even though this is a substantial compressor, it is designed to remain portable.
Four large easy-roll wheels, rugged airless tyres, an extended handle, and extra grab handles help make moving it around the workshop or garage more manageable.

Built for Workshop Versatility

The page positions this model as suitable for a wide array of tools and uses.
It is the kind of compressor that makes sense for buyers wanting one larger-capacity unit that can cover inflating, spraying, cleaning, and many general air-powered workshop tasks.

Key Specifications

• Brand: UNIMAC
• Model: ACM-1000s Quiet Air Series
• SKU: TOLACMUM1M0FA
• Product type: Air Compressor
• Power type: Corded Electric
• Input voltage: 240V AC
• Power plug: 15A
• Power rating: 3 x 1.1kW
• Total output: 4.5HP
• Free air delivery: 300L/min (10.6 CFM)
• Air displacement: 630L/min
• Working pressure: 116 PSI
• Restart pressure: 86 PSI
• Receiver capacity: 100L
• IP rating: IP20
• Starting method: Step Start Control Box, Independent Pump Control
• Starting system: Automatic Pressure Control Switch

Highlights at a Glance

• 100L air tank capacity for longer uninterrupted work
• 4.5HP total output from 3 twin-cylinder 1.1kW motors
• 300L/min free air delivery at 7 bar
• Working pressure of 116 PSI and restart pressure of 86 PSI
• Quiet oil-free design for easier day-to-day use
• Independent motor control to reduce surges and improve efficiency
• Twin Nitto quick-connect outlets
• Easy-to-read tank and line pressure gauges
• Portable design with four wheels and extended handle
• Low-maintenance service-friendly setup

What’s in the Box

• 1 x Unimac ACM1000s Air Compressor
• 4 x 8-inch Wheels
• 6 x Air Filters
• 1 x Handle
• 1 x User Manual Flyer
• Note: User manual is accessible online.
• Note: Minimal assembly required.

Size and Weight

• Product dimensions (W x L x H): 41 x 114 x 80cm
• Product weight: 72kg
• Carton dimensions (W x L x H): 42 x 111 x 85cm
• Gross weight: 87kg

Who It Suits

This air compressor is a strong fit for workshop users, serious DIY buyers, and garage owners who want a quieter high-capacity electric unit for regular compressed-air work.
It makes especially good sense for buyers who want more airflow and tank capacity than a light-duty compressor can offer, but who still value portability and lower maintenance.

Final Thoughts

The UNIMAC ACM-1000s comes across as a serious, workshop-ready air compressor with a strong mix of capacity, quieter running, and practical usability.
With its 100L tank, 4.5HP output, 300L/min free air delivery, twin Nitto outlets, and oil-free design, it is a compelling option for buyers who want strong electric compressor performance with less fuss.

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