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Sisu Polar
Sisu Polar
	Sisu Polar Works.
Overview
Manufacturer	Oy Sisu Auto Ab
Also called	DK12M; DK16M
Production	2011–present
Model years	2012–present
Assembly	Raseborg, Finland
Body and chassis
Layout	Standard: 6×2, 6×4, 8×2, 8×4, 10×2, 10×4; Off-road: 6×4, 6×6, 8×8
Related	Mercedes-Benz Actros
Powertrain
Engine	Mercedes-Benz V6, V8 or L6;; 310–460 kW → table
Transmission	MB PowerShift G-280, automatic; MB Telligent G240, manual; Eaton Fuller RTLO 20918, non-synchronous manual;

Sisu Polar is a truck model series produced by the Finnish heavy vehicle producer Sisu Auto. It came into the market in 2011 and the main applications are earthmovers, logging trucks, road maintenance vehicles, mobile cranes and heavy machinery hauliers which are fully equipped in the factory. The series includes two main variants DK12M and DK16M. The number of axles is 3, 4 or 5. Mercedes-Benz supplies some key components; cabins and engines in particular.

Applications

Sisu Rock — earth mover
Sisu Roll — hook loader
Sisu Timber — logging truck
Sisu Works — road maintenance vehicle
Sisu Crane — mobile crane
Sisu Carrier — heavy machinery hauler

Sisu Works came first time into market in Polar series.^[4]

Development

The previous Sisu-model used Renault cabins, Cummins, Caterpillar, Renault and Mack engines were available depending on model and ZF gearboxes as well as Fuller transmission. When developing of the new series, the company wanted to source components from one partner in order to have a more compact unit and avoid of extra engineering work that was needed for fitting the various components together. Another reason for the one-source policy was improving of the aftermarket operations.^[5]

At the time when the new model series was under development, the Sisu vehicles were distributed in Finland by Veho, which also represented Mercedes-Benz trucks. Sisu Auto signed a supply contract with Daimler Trucks AG for cabins, engines and gearboxes. Rumours about the partnership were confirmed when a prototype was spotted in late summer 2010. As the project was revealed and Sisu Auto had gained enough of experience to be confident about the construction, the company decided to announce the new product in the same August.^[5]

The complete series was officially launched in Kuljetus 2011 fair in Jyväskylä in May 2011.^[1] The Mercedes cabin was styled to Sisu look by industrial designer Jukka Pimiä. The grille with four transversal ribs resemble the preceding model.^[3] The main variants are DK12M and DK16M. "K" means a high cabin, the number stands for engine displacement in litres and "M" means forward-control cabin.^[1]

An off-road range with three and four axles was launched in January 2014.^[2]

Reception

The large portion of parts sourced from Daimler caused such doubts, that Sisu would be Mercedes-Benz Actros with just a different badge. However, the frame and axles differ from those of Mercedes.^[1]

Konepörssi magazine tested Sisu Rock earthmover application. The cabin was praised more spacious and easier to access compared to the Renault cabin used in the previous models. Layout of switches was criticised. When the Polar was tested with a trailer, with over 36 tonnes payload and 59.2 tonnes gross weight, performance of the V8 engine and the vehicle behaviour were assessed good.^[6]

Polar was selected Truck of the Year in Finland in 2012. The arguments for the selection were mentioned applying modern technology successfully to the Finnish conditions, robust structure and axles, delivering the vehicles ready equipped with the superstructures to the specific purpose and a good component supplier partnership together with a well-covering service network.^[4]

Technical data

Engine data

Engine data	Polar DK12M	Polar DK16M	Polar CM13M	Polar CK16M
Engine make and type	MB OM 501 LA^[3]	MB OM 502 LA^[3]^[6]	MB OM 471^[7]	MB OM 473^[7]
Description	V6 diesel^[3]	V8 diesel^[6]	L6 diesel^[7]	L6 diesel^[7]
European emission standard	Euro V^[8]	Euro V^[9]^[10]	Euro VI^[7]	Euro VI^[7]
Years in production	2011–2013	2011–2013	2014–^[7]	2014–^[7]
Displacement	11,950 cm³^[8]	15,928 cm³^[6]	12,800 cm³^[11]	15,600 cm³^[12]
Max. output	350 kW /1800 1/min^[8]	405 kW^[9] or 440 kW^[10] /1800 1/min	310 kW, 350 kW or 375 kW /1800 1/min^[7]^[11]	380 kW, 425 kW or 460 kW /1600 1/min^[7]^[12]
Max. torque	2,300 Nm /1080 1/min^[8]	2,600 Nm^[9] or 2,800 Nm^[10] /1080 1/min	2,100 Nm, 2,300 Nm or 2,500 Nm /1100 1/min^[7]^[11]	2,600 Nm, 2,800 Nm or 3,000 Nm /1100 1/min^[7]^[12]

At early 2013 the company informed that Euro VI engines will be presented in October 2013 and the first production models would be handed over to customers in the second quarter of 2014.^[7] Later the introduction has been postponed to early February 2014.^[13]

Gearbox

Two of the gearbox options, the 16-speed PowerShift G-280 automatic gearbox and as well 16-speed Telligent G240, which is manual, come from Daimler. Non-synchronous Eaton Fuller RTLO 20918 with 18 gears is available as a third option.^[3]

Axles

The axles are produced by Sisu Axles.^[6] The steering front axles are type FSND-10-P with maximum ten tonnes capacity^[3] and disc brakes.^[6]

The models with driven tandem axle are equipped with a power disengagement possibility of the posterior axle and the Vanaja lifting tandem system.^[6] The previously used mechanical steering of the second steering axle is replaced by an electro-hydraulic steering system.^[14]

The off-road models are available with three and four axles; the layouts are 6×4, 6×6 and 8×8. The axles are with single wheels and equipped with CTI system.^[2]

Frame

The frame is available in two different profiles. The more robust version is of 460 mm high C-profile frame, on which all beams and brackets of tipper are directly attached. The key benefit of the solution is a good dumping stability; on the other hand, the high frame limits the possibilities for superstructure modifications. Another, conventional arrangement^[6] is made from U-profile and is 300 mm high;^[3] a separate subframe with the needed brackets is attached by means of bolts.^[6]

Cabin

The cabin is borrowed from Mercedes-Benz Actros and the earlier model available in three types: normal, extended with bed and a high extended version.^[3] The new Euro VI model will have a new cabin which will be available in two basic types: the lower one is 2.3 metres and the higher one 2.5 metres high. Several roof options will be available for both types.^[7]

Sales

The initial plan was to grow the production gradually up to 500 units per year of which one third would be exported; the most important export markets were estimated to be Russia, Switzerland and Norway. The Russian market has been expected to focus on logging trucks, Swiss market on five-axle trucks^[15] and in Norway the company expects sales in earthmovers. Moreover, Sisu Auto sees potential for mobile cranes in the Central European market.^[14]

The actual sales remained low until 2012 – only about 50 Sisu Polars were produced in the whole year.^[16]

In April 2013 the company estimated the whole year's sales to reach 200 vehicles. The sales have benefitted from the new Finnish legislation, that allows a total weight of 76 tonnes instead of the previous 60 tonnes for a truck with trailer. The first export market was Norway.^[16] In September and October Sisu was the leader in earthmoving trucks of over 25 tonnes in the Finnish market.^[17]

The first customer for the early 2014 launched off-road range is the Russian racing team KamAZ-Master which bought it as off-road racing service vehicle.^[2]

References

^ ^a ^b ^c ^d Blomberg, Olli (2011). "Uusi Sisu Polat tulee – Ja se ON Sisu!" (PDF). Kuljetusyrittäjä (in Finnish) (1). SKAL: 38–39. Retrieved 2013-09-11.^{[permanent dead link‍]}
^ ^a ^b ^c ^d "Sisu Polar mallisto laajenee off-road-versioilla". Metsäalan Ammattilehti. Helsinki. 2014-01-10. Retrieved 2014-01-15.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Hievanen, Jouni (2010). "Polar juhlamalli" (PDF). Ajolinja (in Finnish) (8). B Yhtiöt Oy: 4–8. Retrieved 2013-09-15.^{[permanent dead link‍]}
^ ^a ^b Laurell, Heikki (2012). "Tässä on Vuoden Kuorma-auto Suomessa 2012 — Sisu Polar" (PDF). Auto, tekniikka ja kuljetus (in Finnish) (7). B Yhtiöt Oy: 42. Retrieved 2013-09-20.^{[permanent dead link‍]}
^ ^a ^b Kekko, Iikka (2011). "Jotain uutta, jotain vanhaa" (PDF). Raskas Kalusto (in Finnish) (1). Viipalemediat Oy: 14–18. Retrieved 2013-09-11.^{[permanent dead link‍]}
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Perttilä, Ari (2011). "Rokkaava raaseporilainen" (PDF). Konepörssi (in Finnish) (7). SL-mediat: 10–12, 16. Retrieved 2013-09-11.^{[permanent dead link‍]}
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ "Uusien moottorien lisäksi uusi ohjaamo – Sisu Polar Euro 6 esitellään lokakuussa" (PDF). Metsätrans (in Finnish) (3). Metsätrans-Lehti Oy: 58. 2013. Retrieved 2013-09-23.^{[permanent dead link‍]}
^ ^a ^b ^c ^d "OM 501 LA – 12L V6 Engine (350 kW)". Mercedes-Benz UK. Archived from the original on 2013-10-08. Retrieved 2013-09-14.
^ ^a ^b ^c "OM 502 LA – 16L V8 Engine (405 kW)". Mercedes-Benz UK. Archived from the original on 2013-10-08. Retrieved 2013-09-14.
^ ^a ^b ^c "OM 502 LA – 16L V8 Engine (440 kW)". Mercedes-Benz UK. Archived from the original on 2013-10-08. Retrieved 2013-09-14.
^ ^a ^b ^c "Antos OM 471 LA 12.8L". Mercedes-Benz UK. Retrieved 2013-09-23.
^ ^a ^b ^c "Antos OM 473 LA 15.6L". Mercedes-Benz UK. Retrieved 2013-09-23.
^ Hievanen, Jouni (2013). "Uusi Sisu Polar" (PDF). Ajolinja (in Finnish) (8). B Yhtiöt Oy. Retrieved 2014-01-15.^{[permanent dead link‍]}
^ ^a ^b "Räätälöitynä ja ajovalmiina – Siviili-Sisun uusi tuleminen" (PDF). Suomen Autolehti (in Finnish) (5). Autotieto Oy: 10–15. 2011. Retrieved 2013-10-07.^{[permanent dead link‍]}
^ Perttilä, Ari (2011). "Räätälöityä sarjatuotantoa" (PDF). Konepörssi (in Finnish) (4). SL-mediat: 16–17. Retrieved 2013-10-06.^{[permanent dead link‍]}
^ ^a ^b Saastamoinen, Jukka (2013). "Sisu heräsi horroksesta" (PDF). Kauppalehti (in Finnish). Kauppalehti Oy: 14–15. Retrieved 2013-10-07.^{[permanent dead link‍]}
^ "Sisu Polar Rock nousi syys-lokakuussa myydyimmäksi maansiirtoautoksi" (PDF). Europörssi (12/2013). Lempäälä, Finland: Oy Faktavisa Ab. Retrieved 2014-01-15.^{[permanent dead link‍]}

External links

[Kuljetusyrittäjä_2011-01:_s.38-39-1] Blomberg, Olli (2011). "Uusi Sisu Polat tulee – Ja se ON Sisu!" (PDF). Kuljetusyrittäjä (in Finnish) (1). SKAL: 38–39. Retrieved 2013-09-11.^{[permanent dead link‍]}

[Metsäalan_Ammattilehti:_Sisu_Polar_off-road-2] "Sisu Polar mallisto laajenee off-road-versioilla". Metsäalan Ammattilehti. Helsinki. 2014-01-10. Retrieved 2014-01-15.

[Ajolinja_2010-08:_s.4-8-3] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Hievanen, Jouni (2010). "Polar juhlamalli" (PDF). Ajolinja (in Finnish) (8). B Yhtiöt Oy: 4–8. Retrieved 2013-09-15.^{[permanent dead link‍]}

[ATK_2012-04:_s.42-4] Laurell, Heikki (2012). "Tässä on Vuoden Kuorma-auto Suomessa 2012 — Sisu Polar" (PDF). Auto, tekniikka ja kuljetus (in Finnish) (7). B Yhtiöt Oy: 42. Retrieved 2013-09-20.^{[permanent dead link‍]}

[Raskas_Kalusto_2011-01:_s.14-18-5] Kekko, Iikka (2011). "Jotain uutta, jotain vanhaa" (PDF). Raskas Kalusto (in Finnish) (1). Viipalemediat Oy: 14–18. Retrieved 2013-09-11.^{[permanent dead link‍]}

[Konepörssi_2011-07:_s.10-12;_16-6] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Perttilä, Ari (2011). "Rokkaava raaseporilainen" (PDF). Konepörssi (in Finnish) (7). SL-mediat: 10–12, 16. Retrieved 2013-09-11.^{[permanent dead link‍]}

[Metsätrans_2013-03:_s.58-7] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ "Uusien moottorien lisäksi uusi ohjaamo – Sisu Polar Euro 6 esitellään lokakuussa" (PDF). Metsätrans (in Finnish) (3). Metsätrans-Lehti Oy: 58. 2013. Retrieved 2013-09-23.^{[permanent dead link‍]}

[M-B_UK:_OM501LA_350_kW-8] "OM 501 LA – 12L V6 Engine (350 kW)". Mercedes-Benz UK. Archived from the original on 2013-10-08. Retrieved 2013-09-14.

[M-B_UK:_OM502LA_405_kW-9] "OM 502 LA – 16L V8 Engine (405 kW)". Mercedes-Benz UK. Archived from the original on 2013-10-08. Retrieved 2013-09-14.

[M-B_UK:_OM502LA_440_kW-10] "OM 502 LA – 16L V8 Engine (440 kW)". Mercedes-Benz UK. Archived from the original on 2013-10-08. Retrieved 2013-09-14.

[M-B_UK:_OM471LA_310-375_kW-11] "Antos OM 471 LA 12.8L". Mercedes-Benz UK. Retrieved 2013-09-23.

[M-B_UK:_OM473LA_380-460_kW-12] "Antos OM 473 LA 15.6L". Mercedes-Benz UK. Retrieved 2013-09-23.

[Ajolinja_2013-08:_Uusi_Sisu_Polar-13] Hievanen, Jouni (2013). "Uusi Sisu Polar" (PDF). Ajolinja (in Finnish) (8). B Yhtiöt Oy. Retrieved 2014-01-15.^{[permanent dead link‍]}

[Suomen_Autolehti_2011-05:_s.10-15-14] "Räätälöitynä ja ajovalmiina – Siviili-Sisun uusi tuleminen" (PDF). Suomen Autolehti (in Finnish) (5). Autotieto Oy: 10–15. 2011. Retrieved 2013-10-07.^{[permanent dead link‍]}

[Konepörssi_2011-04:_s.16-17-15] Perttilä, Ari (2011). "Räätälöityä sarjatuotantoa" (PDF). Konepörssi (in Finnish) (4). SL-mediat: 16–17. Retrieved 2013-10-06.^{[permanent dead link‍]}

[Kauppalehti_2013-04-12:_s.14-15-16] Saastamoinen, Jukka (2013). "Sisu heräsi horroksesta" (PDF). Kauppalehti (in Finnish). Kauppalehti Oy: 14–15. Retrieved 2013-10-07.^{[permanent dead link‍]}

[Europörssi_2013-12:_Sisu_Polar_Rock-17] "Sisu Polar Rock nousi syys-lokakuussa myydyimmäksi maansiirtoautoksi" (PDF). Europörssi (12/2013). Lempäälä, Finland: Oy Faktavisa Ab. Retrieved 2014-01-15.^{[permanent dead link‍]}

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PROFILPELAJAR.COM

Sisu Polar

Applications

Development

Reception

Technical data

Engine data

Gearbox

Axles

Frame

Cabin

Sales

References

External links

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