Greenmech Arborist 13-23

The Greenmech Arborist 13-23 is the lightest road-towable woodchipper in the Greenmech range and is an entry level model with attitude.

Greenmech Arborist 13-23 - image: HW
Greenmech Arborist 13-23 - image: HW


Hardmet Landforce Duo 235
Schliesing 220MX
Vermeer BC160XL
Greenmech Arborist 13-23
Timberwolf TW350TDHB(t)


- Ian Bawcutt, deputy-head gardener, Sir Harold Hillier Gardens
- Tom Dewey, junior arborist, Sir Harold Hillier Gardens
- Matt Noyce, senior arborist, Sir Harold Hillier Gardens

In this review, we put the Hardmet Landforce Duo 235 through its paces to see whether chipping and shredding really can be done by one, industrial-sized machine. We look at the Schliesing 220MX - a machine you may want to look for on the used-machinery market. We also see whether the BC160XL from Vermeer is what the European market expects.

The machines were tested by the arborists and deputy-head gardener at the Sir Harold Hillier Gardens (SHHG) near Romsey in Hampshire. The gardens, established in 1953 by distinguished plantsman Sir Harold Hillier and set in 73ha, hold one of the most important plant collections in the world. There are more than 42,000 plants from around the world, including 12 national plant collections and 300 champion trees. Conditions on the test day were cool but dry and sunny.

From the plant collections at SHHG to the magnificent trees at Westonbirt - we move sites to let the arboretum team test two of the latest models from Greenmech and Timberwolf. The Arborist 13-23 is Greenmech's lightest chipper to date and the TW350TDHB(t) is Timberwolf's biggest. Conditions here were also dry on test day.


At less than £10,000, arborists may find it a useful tool in their armoury if they take on a lot of back garden work.
Its small size means it is an ideal machine for accessing those awkward sites. It is also likely to appeal to those professional gardeners who deal with a lot of timber and need something meatier than a garden shredder. What is more, it is small enough to be stowed in the average garage or lock-up.

The Arborist 13-23 is built for the budget end of the professional market and intended to compete with Timberwolf's 20hp TW125 - a model with a 12.5cm (5in) square in-feed. It is officially badged as a 12.5cm (5in) chipper but has a letter box opening of 130x 230mm (6x9in) to ensure that awkward branches will go through without needing much preparation.

The standard unit comes as an unbraked version, with a single hydraulic feed roller. Pay an extra £450 and you can have it fully braked and for another £400 you can have a second feed roller fitted. You can own the upgraded machine, complete with 22hp B&S Vanguard engine, for a grand total of £9,950. If you prefer, you can opt for a version with a 20hp diesel engine.

The machine's features include an electronic start with recoil backup, a direct belt drive with simple system for tensioning, a variable speed control, no-stress, fully greaseable bearings and a metal fuel tank. The construction is robust and the in-feed chute folds for storage and transport.
This may be an economy model but it has plenty of power and quickly finds favour with the Westonbirt team. "For the target market, this is an excellent piece of kit. It's a tidy little machine. I was surprised at the power when we started it up - it has got some velocity for such a small unit," one tester sums up. Another adds: "We have been feeding all sorts of material in from all different angles. It didn't struggle once and is really quick."

One aspect we don't miss - the nuisance of a bottom bar. The height of the in-feed funnel on this machine means the side and top bars are sufficient.

Max capacity: 130x230mm in-feed
Engine: 22hp B&S petrol
Feed: Single or twin rollers
Weight: Approximately 600kg depending on specification
List price: £9,950 + VAT for braked, petrol-engined unit with twin?rollers?
Contact: Greenmech - 01789 400044

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