Hitachi's parallel thinking

Hitachi has expanded its ZW wheeled loader range with a new ZW180PL (Parallel Linkage) version, making it suitable for a wide range of attachments, including forks, log grapples and large-volume buckets.

According to Hitachi, when the PL's arm is raised the change in angle of the attachment is minimal (less than 3°) compared to a standard wheel loader (more than 26°), which makes it particularly useful for fork-lifting applications.

The PL version also has two bucket cylinders, which makes it ideal for use with the log grapple attachment. It can lift loads to a higher position than the standard wheel loader, said Hitachi, because it has greater power when the arm is elevated.

The ZW180PL is equipped with a quick coupler to make switching between attachments fast and simple and additional hydraulics can also be fitted to the attachment if required. Bucket operation can also be controlled more precisely by the ZW180PL, so it is more suitable for use with heavy attachments, and when slower, gradual loading is required.

The Total Torque Control System has manually adjustable settings between traction force, penetration force and front speed to increase productivity and reduce fuel consumption. Advanced automatic transmissions allow for enhanced load-and-carry performance, and the machine's load-sensing system brings improved loading efficiency. Simultaneous movement of the wheel loader's arm and bucket also improves rise-and-travel performance.

The ZW180PL has a three-step clutch cut-off system, which allows for the selection of balance between braking force and clutch cut-off when working on a gradient. A new powerful engine and capacious torque converter brings greater mobility under heavy loads.

The PL model's cab is identical to the ZW180 wheel loader and features adjustable heated seat with air suspension, air conditioning and adjustable steering column. All controls, switches and pedals are ergonomically designed and positioned for ease of use.

The cab also has a third control lever, which is linked to the additional hydraulics on the PL wheel loader, and allows for easy and controlled operation of additional attachments. Enlarged windows and rear-view mirrors give excellent all-round visibility.

Shocks and vibrations are absorbed by the well-sealed, damped cab, which also helps to reduce resonance. The Hitachi Silent (HS) fan helps to keep noise levels to a minimum. The PL also has an additional counterweight to improve stability.

It also features easily accessible inspection points and more durable components, said Hitachi. The water separator, fuel and engine oil filters are within easy reach from ground level and the new hydraulic system has increased hydraulic oil replacement intervals to 4000 hours.

A reversible cooling fan with heat-sensing system allows for the removal of dirt and general cleaning. The flat cab floor and front frame facilitate effective cooling of lubricants.

The ZW180PL also features HN bushings, axles, transmission and brakes. The new HN bushings increase lubrication intervals from 100 to 500 hours, helping to extend service intervals and reduce downtime.

The 128 kW ZW180PL is available in operating weights of 15,24 to 15,44 tonnes depending on specification. Maximum bucket capacity is 2,5 to 3,1 m3. Breakout force is 112,5 kN.