• Products Details

Product Descriptions

Items: hitachi roller ex50

Material: 50Mn/40MnB

Colors: Black or yellow

Technique: Forging & casting

Hardness: HRC48-54,deepth:4mm-10mm

Wattanty time: 2000 hour

Product Details

1: Single and double-edge track roller suits for excavating machine and special machinery ranging 3 to 50 tons.

◎ Double conical sealing and lifelong lubrication designing enable the track roller to have longer service life and perfect performance in any circumstances.

◎ The shell made by hot forging treatment obtains superior structure of internal materials and fiber

◎ Differential quenching or feed-through quenching heat treatment is effective in crack resistance.


Hitachi Excavator EX50 track roller lower roller bottom roller

Keyword: track roller, lower roller, bottom roller, EX50 track roller.

Excavator Undercarriage Parts Applied Range: the models below are just for reference, we can supply more products as your reuirement, please kindly send us your inquiry or click sales05@china-ysm.com here.


Model no

VOLVO Excavator

EC15/EC20 EC25/30/35 EC55 EC140 EC290 EC290C EC340 EC360C EC460 EC700BLC

KOMATSU Excavator

PC20-3 PC30-1 PC30-7 PC45 PC56 PC50 PC60-1 PC60-5/6 PC60-7 PC75 PC1 00-2/3/5
PC200-1/2 PC200-3 PC200-5/6PC200-7 PC300-3 PC300-5 PC300-6 PC300-7 PC360-8
PC400-5/6 PC600-6 PC650-1 PC650-5


E70B E307 E120B E312 E320 E322 E323 E227 E229 E300 E300BL E325/BL E345/BL E350 E365 E375 E385 E450

KOBELCO Excavator

SK50 SK03/SK60-3 SK60-5/6 SK60-8 SK100 SK120 SK140-8 SK05/SK04-2 K904C K907 SK04-1
SK200-3 SK200-5/SK230 SK260-8 SK07N2 SK220-1 SK300-1 SK300-3 SK320 SK330 SK400

Sumitomo Excavator

SH60 SH70 SH100LC/LS2600LC SH120 LS2600 SH120-3 SH200A3 SH220-3 SH340 SH280 SH300/SH430 SH350-3 SH450 SH450A2 SH580

HITACHI Excavator

EX30 EX40-1 EX55 EX60-1/2/3 EX90-1 EX100-1 EX100M-1 UH043 UH053 EX200-1 EX200-2/3/5
EX220-1 EX270EX300-1/2/3 EX300-5 EX400-1 EX600 EX750 ZAX70 ZAX1 20 ZAX200 ZAX230
ZAX330 ZAX360 ZAX470


1: How can I ensure the parts match my machine or not?

we have caterpillar,Komatsu,Shantui etc sale system where we can check parts information to ensure them only if you offer us model nameplate.

chain link assembly

2: What shall I do if I can't ensure the model?

We can offer you parts diagram to measure the dimension.If you need


3: How do you ensure your parts quality?

Quality is always the first. We will sign up "parts warranty policy"with our clients.


strictly implemented ISO9001 Quality Management System and ISO14001 Environmental Management System so as to provide the excellent quality's products for customers

Idlers Sumitomo SH120-3

We attend exhibition every year, such as CONSTRUCTION INDONESIA 2017 , Bauma Shanghai 2016, PHIL CONSTRUCT 2016, Bauma Conexpo Africa 2015, Russia CTT 2013 etc, welcome to visit us next time after pandemic session if you have a chance to visit China.

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They are all manufactured according to the strictest international standards. Our products have received favor from both domestic and foreign markets.
They are now widely exporting to 200 countries.


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