ACS 542 (16")

Petrol chainsaw

A 1.9kW petrol chainsaw with a 42.2cc engine and a 40cm guide-bar. The cutting-gear is manufactured by Oregon.
  • Powerful 42.2cc/1.9kW air-cooled two-stroke engine
  • 40cm guide-bar – suitable for larger cuts
  • Lightweight design – just 5.9kg
  • Capacious oil/fuel tanks keep downtime to a minimum (0.26L/0.51L)
Tax Included

Product details and specs

If you’re looking for a powerful petrol chainsaw that’s nevertheless lightweight and easy-handling, the Alpina ACS 542 ticks all the boxes!
Supplying the premium-brand Oregon cutting-gear with an impressive 1.9kW (2.5hp) is a high-capacity 42.2cc two-stroke air-cooled engine with a manual fuel-pump that ensures easy, stress-free starting on the first or second pull.
Thanks to advanced combustion technology, the engine offers a 60% reduction in unburned hydrocarbons and a 20% improvement in fuel economy in comparison to conventional units with a comparable displacement.
The safety optimising chain-break on the ACS 542 is activated in one of two ways – either manually, by pushing on the handguard; or automatically, by the inertia generated by kick-back.
An automatic oil-pump – adjustable to suit timber density – ensures a smooth cut and lessens wear on the bar and chain; while an engine on/off switch facilitates immediate restart following shutdown.
The ACS 542 offers numerous comfort & convenience features, from no-tools air-filter access, straightforward side chain-tensioning and easy-fill oil- and fuel-tanks, through to ergonomically shaped grips and effective spring-type vibration damping.
Capable of executing cuts in more substantial logs and timbers, this model comes with a larger 40cm guide-bar.


Premium-quality bar and chain from US market-leaders Oregon
Side tensioner keeps your hands away from the sharp saw chain when adjusting
No tools required to access the air-filter for cleaning or replacement
Anti-vibration system limits user-fatigue
Quick-stop chain break halts the chain instantly when activated
Automatic oil-pump with adjustable flow rate

What's in the box

ACS 542 (16")
ACS 542 (16")
Petrol chainsaw
  • lensScrewdriver
  • lensChain round file
  • lensSpark plug key

Technical specs

General info
1.9 kW
Power source
Petrol 2-stroke
42.4 cm³
Engine rotation speed
12000 rpm
Maximum engine speed
12000 rpm
Idling speed (+/- 100)
3100 rpm
Manual with automatic return
Fuel tank capacity
0.51 l
Carburettor type
Butterfly valve
Ignition coil type
Air filter type
Nylon net
Cutting system
Bar type
Sprocket nose
Bar length
40 cm
Bar length (inches)
16 in
Chain type
.325" .050" (95TXL-66X)
Chain speed
23.1 m/s
Chain brake
Manual and inertial
Chain oil tank capacity
0.26 l
Chain oil pump
Automatic adjustable
Chain tensioning system
Side screw tensioning
Handle type
Rear handle
Vibe Control System (VCS)
Soft grip handle
Tools kit
Included tools kit
Screwdriver, chain round file, spark plug key
Vibration and noise data
Guaranteed sound power level (LwA) - dB(A)
Measured sound power level dB(A)
Measured sound pressure level at operator ear dB(A)
Vibration level front handle (m/s2)
Vibration level rear handle (m/s2)
Overall dimensions
Pack weight
8.2 kg
Product weight
5.89 kg
Product length
775 mm
Product width
283 mm
Product height
315 mm


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