ST6D 42 Först 6-inch diesel wheeled woodchipper
The stronger 6-inch diesel: a 42hp Doosan behind the same wide hopper and open-top flywheel.
Available to order

- feed opening
- 6" × 8"
- Doosan DPF diesel
- 42hp
- weight
- 1,105 kg
- wide
- 1.4 m
How the ST6D 42 is built

42hp Doosan diesel
A Stage V Doosan with a DPF: the stronger of the two 6-inch diesels, for crews that chip all day.

Open-top flywheel
A 640 × 25 mm flywheel with twin 8-inch blades throws the chip instead of blowing it, so wet, green material is far less likely to block the chute.

Wide hopper
Wide all the way down to the rollers, so forks and awkward limbs go in without trimming.

AutoIntelligence control
Sealed electronics that run the no-stress feed, tell you when a service is due and prompt the routine checks. Proof against water and vibration.

Built to last
Flanged steel fabrications, finished properly, with a C-section chassis.

Easy-access anvil
The anvil turns or swaps in minutes, so a fresh edge is never a workshop job.

Clear fuel tank
A see-through 30-litre tank with a wide filler neck. You can read the level from across the yard.
ST6D 42 specification
- Feed opening
- 6" × 8" (150 × 200 mm)
- Flywheel
- Open top, 640 × 25 mm
- Blades
- Twin 8-inch
- Engine
- Doosan diesel with DPF
- Power
- 42hp
- Feed roller system
- FörstGrip feed rollers
- No-stress system
- AutoIntelligence no-stress device
- Feed control
- AutoIntelligence touch pads, water and vibration proof
- Fuel tank
- 30 litres
- Noise level
- LwA 122 dB
- Weight
- 1,105 kg
- Width
- 1.4 m
- Length, hopper up
- 3.6 m
- Height with chute
- 2.3 m
Figures are Först’s published specification. Ask us to confirm anything that matters for your job before you order.
ST6D 42 service kit
The filters and service parts this machine takes, from our own stock list. Engine oil: 15W-40.
-
Air filter, outer Part no. 50-99-003Price on requestAsk us
-
Air filter, inner Part no. 50-99-004Price on requestAsk us
-
Hydraulic return filter
Part no. 12-24-054, change after the first 20 hours, then every 500
Price on requestAsk us -
Engine oil filter
Part no. 50-99-001
£25.61 + VAT (£30.73) 1 in stockView -
Fuel filter Part no. 50-99-002Price on requestAsk us
-
Phosphor bronze bearing
Part no. 12-01-052
Price on requestAsk us
Every ST6D 42 part, on Först’s own drawings
295 parts across 31 exploded drawings. Click a part on the drawing to see our price and stock, then add it to the basket.
Open the ST6D 42 parts drawingsAsk about the ST6D 42
Tell us what you're chipping and where. We'll come back with a price, what's in stock, and a demonstration if you want to see it work first.
- Send the form or call. It reaches our machinery team in Treforest.
- We call you back. Price, availability, and answers on finance or part exchange.
- See it chip. We arrange a demonstration before you commit.
Prefer to talk? 01443 230000
Forest Park & Garden, Coed Court, Treforest. Sales, workshop servicing and parts under one roof.
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