Scania Comfort Shift
The Scania K-series is a series of bus chassis with longitudinally, straight-up mounted Euro IV engine at the rear. For the 5- and 6-cylinder engines Scania is using exhaust gas recirculation (EGR) system to fulfill the legal Euro IV emission standard. The K-series is available with 9-litre 5-cylinder engines with output of 230 hp (1050 Nm), 270 hp (1250 Nm) or 310 hp (1550 Nm) as well as the 12-litre 6-cylinder engines with output of 340 hp (1700 Nm), 380 hp (1900 Nm), 420 hp (2100 Nm) or 470 hp (2200 Nm).
With Euro 5 emissions becoming mandatory in Europe in 2009, Scania have released upgraded engines in order to meet these regulations. The 5-cylinder DC9 engines feature a larger bore and displace 9.3-litres instead of 8.9-litres. The DC12 engines feature both a larger bore and a longer stroke, and therefore displace 12.7-litres instead of 11.7-litres. Most engines also receive slight performance improvements, for example the DC9 engine that outputs 310 hp/1550 Nm has been upgraded to 320 PS/1600 Nm.
The variants of K-series bus include coach, intercity bus and citybus chassis.
The K270UA, K280UA, K305UA, K310UA, and K320UA (known as KUA in internal records) are the articulated (6x2/2) citybus variant which can be ordered with the two stronger 9-litre diesel engine variants or the strongest 9-litre CNG engine variant.
In Adelaide, Torrens Transit currently have 65 K320UA units (1101-1165), all used on the O-Bahn, in addition to one K310UA unit (1015) which was used as an initial trial and is owned by Scania. Southlink currently have 7 K320UA units (2830-2836).
The K230UB, K250UB, K270UB, K280UB, K305UB, K310UB, and K320UB (known as KUB in internal records) are the rigid (4x2 or 6x2*4) citybus variant which can be ordered with all 9-litre engines.
Numerous bus operators in Australia have operate the Scania K-series chassis.
In Melbourne Eastrans, Invicta Bus Services, Transdev Melbourne, Ventura Bus Lines and Westrans all operate fleets of K230UBs. In Geelong, Benders Busways operates a number of K230UBs and McHarry's Buslines also operate a number of K270UBs, K270IBs, K280UBs and one K320IB.
In Sydney Busways and ComfortDelGro Cabcharge's Hillsbus and Hunter Valley Buses subsidiaries have significant numbers of K230UBs, K280UBs and K310UBs in their fleet. Transdev NSW also operates a fleet of K230UBs while Sydney Buses operate K280UBs.
In Adelaide Light City Buses has 112 K230UB units, of which 98 are used on the O-Bahn Busway. Greater-northern and greater-southern, and hills operator SouthLink has 34 K230UB units + 13 KUB units for use in the Adelaide hills.
In New Zealand, NZ Bus has 2 types of K-series buses. One is Designline body fleets are 21-series which have got K270UB from 2008 till 2009. However 2101 (North Star) and 2111 (GO WELLINGTON) are first Scania K-series bus in NZ. In 2010 new model of 21-series have produced which have got K280UB. Owned by North Star, GO WEST, Metrolink, GO WELLINGTON and new models are by Waka pacific. In 2010 NZ bus also received a new fleet of Scania K-series buses as its 22-series. These buses are build by Kiwi bus builders and have got K280UB, however recently thay have changed bus builder to Designline, using same platform as the 21-series. Owend by the Metrolink Roskill depot in Auckland to operate the Mt Eden Rd route as a b-line and also by Valley Flyer, in the Hutt Valley for operating services to and from the Wellington CBD and to the Airport.
SBS Transit currently operates one of the largest fleet of Scania K-series buses in the world, with a total of 1,101 single-deck K230UBs and a K310UD.
The company made its first purchase of 500 K230UBs at a cost of S$180 million in early 2007, as part of its scheme to replace its aging Volvo B10M, Scania N113CRB & Mercedes-Benz O405 fleet and compliance with the new Euro IV emission standards set by local authorities. The single-deck buses are wheelchair accessible and have 2 wheelchair bays each. They are also fitted with 6-speed ZF automatic transmission as well as Cool-Air electronic destination signage (EDS), and were bodied by Gemilang Coachworks of Malaysia with a modified Scania licenced front.
Two services, Service 100, plying between Serangoon and Ghim Moh, and Service 174, plying between Boon Lay and New Bridge Road, became the first two services to operate these buses when introduced onto service on Thursday, 1 November 2007. As of January 2009, deliveries and introduction into service of the first 500 orders have been completed. They were registered in two batches, the first batch being SBS8033D to SBS8131D, SBS8138K and SBS8888D; the second batch being SBS8132B to SBS8561X (excluding SBS8138K). SBS8033D is a demonstrator in the fleet and is currently deployed under Soon Lee depot to operate on Service 183, so the first bus in the production batch to be registered was actually SBS8034B. Some of the registration series for the second batch of buses, however, does not include those ending with the number 'four' for buses registered after 9 June 2008 (due to tetraphobia).
In September 2008, SBS Transit purchased another 400 K230UBs at the cost of S$147 million, with similar features to the first batch of 500. However, the 400 new orders came configured with a Euro V engine as standard, one wheelchair bay each in favor of extra seating, and a bigger Hanover EDS. The first of these buses were registered from March 2009 till December 2009; registration series began with SBS8562T and later, SBS8875R all the way till SBS8999S. The first few units of Euro V Scania K230UBs were first deployed on Services 3 and 36 in April 2009. The number 'four' series were introduced back into the registration series in mid-2009 for buses registered from SBS8875R onwards (excluding SBS8888D).
SBS Transit made a further order for 200 more K230UBs in August 2009 at a cost of S$72 million, which were delivered as from November 2009. These additions have exactly the same specifications as the batch of 400 Euro V K230UBs, with the exception of the registration series. 5000-series were used, instead of the 8000-series that are in use by the previous batches. Registered SBS5001R - SBS5252H excluding registration numbers containing the digit '4', this batch of buses entered service progressively from 1 February 2010 till June 2010.
Singapore Ducktours has 9 Scania K230UBs (3 under 2007, 4 under 2010 and 2 under 2011), configured as open top double deckers with bodywork by Soon Chow Corporation for its Hippotours service.
Singapore Changi Airport operates 3 Gemilang-bodied Scania K230UB for its internal shuttle services (Budget Terminal >> Terminal 2). Upon withdrawal of the shuttle services(due to the closure of Budget Terminal), these buses were repainted into SATS gateway livery and are used inside the Airport runway.
Resorts World Sentosa operates a handful of KUBs to provide shuttle services for its hotel guests. These buses were bodied by SC Auto in a coach configuration.
National University of Singapore also operates a handful of SC Auto-bodied K230UBs for its internal shuttle service.
The twenty 10.6m versions of K230UBs have been registered between April and June 2009 and known as the ASB class. After undergoing tests, the first few units were finally introduced on route 2C plying between Yau Yat Tsuen and Tsim Sha Tsui on Sunday, 24 May 2009. Some other buses have also been introduced on suburban routes, such as route 7M & 24.
The ten 12m versions of K230UBs have also been registered between June and August 2009 and known as the ASC class.
A further 20 K230UBs of 12m length were ordered afterwards, with one being a Euro V demonstrator of the ASCU class.
Prasarana will soon operate one of the largest fleet of Scania K-series buses in the world, with a total of 790 single-deck K250UB and K270UBs.
In 2009, Rapid Penang ordered 200 Scania K270UB Euro III units. In 2012 Rapid Penang placed another order for 80 Scania K250UB Euro III units, all with a total length of 10.7m. Ten units Scania K250UB Euro III have gone in operation in July 2013. All units are expected to be delivered during the second half of 2013.
In 2011 Rapid KL placed an order for 150 Scania K270UB Euro III units. The bodywork and interior of these buses bear close resemblance to the Euro V units SBS Transit has introduced earlier. In 2013 Rapid KL placed a follow up order for 300 K250UB Euro III vehicles. Deliveries are expected in 2013-2014.
Ten units Scania K250UB Euro III have gone in operation in December 2012. A total of 60 units has been purchased. The buses have restyled front and rear as well as a newly developed driver's place.
The K280UD, K310UD and K320UD (known as KUD in internal records) is the double-deck citybus variant with a 8.9-litre DC9-18 5-cylinder 310 hp Euro IV compliant engine (hence the 310 in K310UD), or a 9.3-litre DC9-29 5-cylinder 280 hp Euro V compliant engine. The 'U' indicates the bus is designed for urban application, the 'D' points out the chassis is made for a double decker.
Kowloon Motor Bus of Hong Kong received two Scania K310UD (complete designation: K310UD6x2EB. The 6x2 shows the bus has a rigid bogie) buses with and ZF 6HP602 gearbox, the rear drive axle has a ratio (differential) of 6.20 and is also a product of ZF. The bus was designed in close co-operation with the body constructor Salvador Caetano (Waterlooville) in order to save weight.
The first one has been registered as MT6551 in March 2007 and entered service on route 104 in August 2007 after testing. The second one has been registered as NE6817 and entered service on route 69X in February 2008.
KMB later ordered a further 20 more units of the K310UD in 2009; they were registered in January 2010.
In March 2011, Citybus received one Scania K280UD (complete designation: K280UD6x2EB) tri-axle double decker. This is the second Scania bus acquired by Citybus, about 10 years after the unique K94UB6x2/4LB was introduced in 2001 (fleet no. 2800). It is fitted with a Euro V compliant Scania DC9-29 engine, rated at 280 hp with maximum torque 1400Nm, both of which are lower than the KMB counterparts (310 hp power output with 1550Nm maximum torque). It is also bodied by Salvador Caetano, but with some minor changes from KMB ones.
SBS Transit received a K310UD demonstrator unit with Gemilang Coachworks Sdn Bhd bodywork in mid-March 2010. It was registered as SBS7888K on 26 March 2010 and entered service on 15 May 2010 on service 133M, plying between Shenton Way and Marina Centre. Now it has been re-deployed to service 25 plying from Ang Mo Kio Bus Interchange to Bedok Bus Interchange.
Auckland received a K320UD unit with Gemilang Coachworks Sdn Bhd bodywork in February 2013. It entered service on 6 March 2013.
The K270IB, K280IB, K310IB, K320IB, K340IB, K360IB, K380IB, K400IB and K420IB (known as KIB in internal records) are the intercity bus variants but are also used for coaches. Available as 4x2, 6x2, 6x2*4 and 8x2.
The K310EB, K320EB, K340EB, K360EB, K380EB, K400EB, K440EB, K420EB, K470EB and K480EB (known as KEB in internal records) chassis are used for top end coaches (4x2, 6x2 as well as 6x2*4).
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