The word ‘unique’ is often over-used but in the case of Japanese company Morooka it is a fitting description.
Morooka is an incredibly versatile and innovative company specialising in an amazing array of quality products for niche applications in domestic and overseas markets.
The company had its origins in 1959 as a construction business, but it wasn’t until the mid-1970s that it started making its mark as a producer of rubber-tracked crawler machines suited to any number of industrial tasks in the toughest environments.
The number of variations of Morooka rubber-tracked machines available today is mind-boggling – agricultural tractors, bulldozers, wood chippers, loaders, dumpers, forklifts, drills rigs, shovels, emergency response crane carriers, and so the list goes on…and on.
The versatility of the Morooka machines, and the company’s ability – and willingness – to respond quickly to customers’ custom-build requirements, often with short production runs, has been highlighted numerous times.
In 2011, following the devastating Japan earthquake and tsunami which killed tens of thousands of people, Morooka received an emergency order from the Ministry of Defence for 120 crane carrier units for the reconstruction effort – an order completed within six months.
Cummins a key player.
Cummins has been a key player in Morooka’s success for a number of years and today supplies QSB6.7 and QSL9 engines for the company’s highly successful MST carrier dump models.
The Cummins brand made its first appearance in a Morooka product in 1995 when an L10 was selected to power a rubber-tracked agricultural tractor. In 1997, Cummins’ long-serving N14 was introduced to the Morooka line-up in a carrier dump model.
What really entrenched Cummins at the Japanese company though, were the Cummins 3.9-litre 4BT and 5.9-litre 6BT engines which powered more than 500 Morooka tractors built between 1990 and 2000 and earned an excellent reputation for reliability and durability.
Today, the QSB6.7 and QSL9 engines, with Tier 4 Final emissions compliance, spearhead Moorooka’s heavier-capacity carrier dump models. The compactness, light weight and high power density of these engines are a perfect fit for the go-anywhere Marooka machines.
Emissions solutions technology.
Cummins’ emissions solutions technology, technical support and product reliability are listed by Mitsuharu Matsumoto, executive officer of Morooka’s product and engineering division, as the key reasons behind the selection of the 6.7-litre QSB and 8.9-litre QSL9 engines.
The QSB6.7 rated at 225 hp powers the MST-1500 carrier dump model which has a 7.0-tonne payload capacity, while the 250 hp-rated QSB6.7 powers the 11-tonne payload MST-2200 model. The QSL9, rated at 325 hp, drives the 15-tonne payload carrier dump model built in the US.
Interestingly, MST stands for ‘Morooka Snow Track’ and while that designation originates from the success of early rubber track models in the snow – Morooka machines have been operating in the Antarctic since 1977 – today it’s more of a generic term highlighting the all-terrain ability designed into the remarkable Morooka products.
Highlighting its innovative capabilities, Morooka has electric-powered products under development, as well as autonomous machines.
Cummins’ relationship with Morooka is taking another important step as the company prepares for release in 2020 of products with Stage V emissions compliance – the toughest ever emissions standard for off-highway equipment.
EGR-free engine architecture.
Komatsu Cummins Engine Company (KCEC) in Japan will be supplying Morooka with its Stage V Cummins QSB6.7 engines which are designed to increase machine capability even in the most arduous duty cycles.
The simplicity of Cummins’ EGR-free engine architecture and ‘Single Module’ aftertreatment technology which combines the DPF, SCR and urea dosing systems in the one unit, means reduced weight with increased reliability and lower running costs.
In the years to come, Morooka will no doubt continue to blaze a trail, always looking for new applications for its incredibly versatile rubber-tracked machines.
A) Morooka crawler carrier powered by 225 hp Cummins QSB6.7 engine.
B) Morooka VP Noboru Morooka (third from right) with his leadership team.
C) Morooka versatility with upper structure able to rotate a full 360 degrees.