This is the longest-running chipper in the Timberwolf range. First developed in 1990, this was our first  chipper designed to run on its own road chassis., This chipper was refined over several years and reached its current form in February 2005.

The design concept for the TW 18/100G was to create a strong, simple, go anywhere chipper, with impressive performance at an affordable price.

The ‘strong’ is achieved by using exactly the same gauge of material in the rotor housing as our much larger 35hp TW 150DHB. This means that some parts of the rotor housing are up to 10mm thick!
To keep it ‘simple’, the chipper has no hydraulics and a robust recoil start 18hp engine.
To make it ‘go anywhere’, the machine is fitted with large (13”) wheels and is designed with a low centre of gravity. Because of its light weight, no brakes are required keeping the underneath of the machine clear of obstructions and making this an ideal chipper for extreme off road use.

As with all good machinery, the difference is in the detail; here are just a few details that help create this impressive road tow chipper:

• The whole machine is fabricated rather than formed from pieces of pressed steel. Pressing steel into shape produces a formed component in seconds and is therefore cheaper than fabrication, but requires that the steel be relatively thin for the machine to be able to press it. The TW 18/100G must be fabricated by hand because of the thickness of material used throughout the machine.
• The rotor is made from solid steel and is attached to a 40mm solid steel shaft capable of taking many times the cutting forces generated by the 18hp Briggs & Stratton engine.
• The shaft runs in 4 industrial sized bearings, again over specified for the work they will be doing.

• The shaft is not attached directly to the crankshaft of the engine but uses 4 belts running in parallel. The belts are not only used to prevent shock loading but by slowing the rotor down we are able to increase the rotor torque of the rotor for enhanced chipping performance.

Despite its size, this chipper is a commercial machine and can work all day, every day, for many years and still be worth a significant amount of money when it comes time to upgrade. With regular, minimal servicing this chipper is easily capable of 10 to 15 years of hard work!

The machine weighs 385kg and so is easily towed by most vehicles but importantly is also able to be easily moved around by 2 people when off the vehicle. The low centre of gravity makes the machine very stable when high-speed towing or when required to go off road.

The engine is an 18hp recoil start Briggs and Stratton. This engine is ideally matched to the chipping rotor and starting the chipper involves a slow, strong pull on the recoil starter.

On the back of the rotor are 10 aerodynamic fan that create positive air pressure within the rotor housing, enabling the TW 18/100G to handle extremely leafy or wet material without blocking, resulting in superb performance regardless of the weather, season or material being processed!

The TW 18/100G has a high discharge tube designed to load efficiently straight into the back of a truck. If required, the discharge tube can easily be rotated through 270 degrees and the discharge bucket can be adjusted so that the chips can be placed exactly where the operator wants them.

The TW 18/100G’s chipping performance comes from 2 blades. Mind you, they are not just any old blades; the 176mm (7”) blades are made from a special Swedish steel that has been developed specifically for large scale commercial chipping. The blades are extremely tough without being brittle and can process many tonnes of material before they need sharpening. With around 10mm of sharpening scope they can be sharpened repeatedly until the wear limit is reached.

Access to the blades is easy and blade change access is exposed with the removal of only 2 bolts on the rotor housing. The blades are retained by 5 torx screws in each and the whole blade changing process takes around 15 minutes.

If you are engaged in one or more of the following, the TW 18/100G is worth serious consideration:

• Landscaper – medium size landscapers will find this an ideal machine for getting the work done quickly and efficiently.
• Private user with a large garden or estate up to 30 acres – A great self contained machine that can be easily towed around the estate without causing excessive ground damage.
• New tree surgery business – If you are a start-up business and find the cost of a Timberwolf hydraulic feed chipper prohibitive, the TW 18/100G is a serious option for you. It is an efficient 1st chipper for those looking to promote a professional image to their customers and wanting the comfort and back-up of a new chipper with warranty. A growing business will be able to make money from this chipper but you should expect to out grow this machine within 2 years and be ready for the high throughput world of hydraulic chipping!