Spectrum DM4500CS 45cc Petrol Chainsaw with 18" Bar
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Useful to know
An 18-inch bar takes most firewood and garden timber in a single clean pass — no working from both sides and lining cuts up by eye.
45cc of torque with a 550ml tank and 4.8kg dry weight: enough saw for a full log pile, light enough to stay controllable through it.
Specifications
| Engine Type | Petrol |
|---|---|
| Engine Capacity | 45cc |
| Engine Fuel Tank Capacity | 0.55 Litres |
| Guide Bar Length | 45cm |
| Chain Pitch | 3/8" |
| Product Weight | 4.8kg |
| Warranty | 5 Years |
Spectrum DM4500CS 45cc Petrol Chainsaw with 18" Bar
Most people buying a chainsaw are not felling timber for a living. They have a log pile to get through before winter, a storm-dropped limb across the drive, or a stand of trees on the boundary that needs keeping in order. The Spectrum DM4500CS is built squarely for that work — a 45cc petrol saw with an 18-inch bar, at a price that does not assume you use it every day.
The 45cc engine sits in the sweet spot for property maintenance. It has the torque to pull a full-length bar through seasoned hardwood without bogging, yet it is a size you can still handle comfortably at chest height or working along a fallen trunk. Below this capacity you start feeling the engine struggle in thicker rounds; above it, you are paying for — and carrying — power that a domestic log pile will never ask for.
The 18-inch bar is the point
An 18" (45cm) guide bar will take on trunks and rounds up to roughly 16 inches across in a single pass, which covers the overwhelming majority of garden and firewood work. That matters more than it sounds: cutting a log wider than your bar means working from both sides and lining the cuts up by eye, which is slower, messier and considerably less safe. Buy enough bar the first time and most jobs become one clean cut.
The chain runs a standard 3/8" pitch — the most common size on the market, so replacement chains and sharpening kits are easy to find and inexpensive. A saw is only as good as its chain is sharp, and you want that to be a trivial thing to put right.
Manageable through a full log pile
At 4.8kg dry, the DM4500CS stays controllable through a long session. Chainsaw fatigue is not an inconvenience, it is the thing that causes accidents — tired arms make sloppy cuts. A saw you can still hold steady after an hour is a saw you will use properly.
The 550ml fuel tank is generous for this class, so you spend more of the afternoon cutting and less of it stopped with a funnel in your hand. Being petrol, there is no cable to work around and no battery to flatten halfway down the log pile — useful when the job is at the far end of a paddock or the power is off after a storm.
What it suits
Firewood preparation, clearing fallen and storm-damaged branches, cutting timber, and general tree and woodland maintenance around a property or smallholding. If you are a full-time arborist working daily, buy a professional saw. For everyone dealing with their own land, this is the honest amount of chainsaw for the job.
As with any chainsaw, use appropriate protective equipment — chainsaw trousers, gloves, helmet with visor and ear defenders — and keep the chain properly tensioned and sharp.
Backed by Spectrum's industry-leading 5-year warranty.
Key Features
- 45cc petrol engine with the torque for seasoned hardwood
- 18" (45cm) guide bar — single-pass cuts on most garden and firewood timber
- Standard 3/8" chain pitch for cheap, widely available replacement chains
- 4.8kg dry weight keeps the saw controllable through a long session
- Large 550ml fuel tank for fewer stops to refuel
- Petrol freedom — no cable to work around, no battery to flatten
- Ideal for firewood, storm damage, timber cutting and tree maintenance
- Sized for property and smallholding work rather than daily professional use
- Industry-leading 5-year Spectrum warranty
