
Carrier Roller for Hitachi Kh230-3 Crawler Crane
The crane carrier roller is used to hold the track upward so that the track has a certain degree of tension.
Product Introduction
Our Front Idler KX91-3, Front Idler IS45, Track Roller MS070 can stand in today's fierce competition market, and can be sold for a long time, depending on the quality of winning, social support and the trust of consumers. With the concept of 'Customer First', we wholeheartedly provide our customers with high-quality products and efficient services. Relying on the management policy of 'ruling the enterprise by virtue and putting people first', we have widely absorbed elites from all walks of life. Our enterprise normally at your provider anytime. We carry out in-depth development in the fields of quality, technology, management and service sales in order to bring into play better social and economic benefits. We have various excellent employees, responsible for product development, design, production and sales.
Production description
The crane carrier roller is used to hold the track upward so that the track has a certain degree of tension.
Quick detail:
Origin: | Fujian,China | Brand | SQ, GTR |
Model: | 7055 | Hardness of trail surface | HRC52-58 |
Color | Yellow, black, gray | Roller body material | 50MN |
Delivery time | 30-45days | Warranty time | 6 months |
Pament term | TT and LC | Machine type | Crawler tracked crane |
Sizes

Supply ability
We can manufacture around 25000pcs of track rollers and carrier rollers one month.
Attentions while assembling the crane upper roller
1. Before assembling crane top roller group,smooth the sharp part of sapre parts and do the deburring,clean the inner holes of the roller body and oil seal etc..
2. Do not break and scratch any part of the sealing parts.
3. Do not oil and distort the rubber floating seal ring during assembling the rollers.
4. A small amount of oil should be covered on the contacting surface while fitting the floating
5. seal group.
6. After finishing the assembling process,fill clean extreme-pressure vehicle gear oil to take 80 percent of the inner cavity of roller body and do the running test then confirm no leakage after 4 hours.

Other more detailed information of crane upper roller group:
Model | 7055 |
Applicable pitch range | 90 to 317.5 |
Material | ductile iron or alloy steel for carrier roller collers |
| 45#,50MN or 40MN2 for carrier roller assy bodies | |
| 45# or 40Cr for carrier rollerassy shafts | |
Manufacturing method | casing ,forging,heat treatment,lathing,milling,drilling,grinding,oil leakage testing,assembly,painting |
Color | Gray,black and yellow etc.. |
Packing | Fumigated wooden palllets |
Port of shipment | Xiamen,Quanzhou China |
OEM and ODM | Acceptable |
Features | 1. Single flange crane top roller group and double flange crane top roller is applicable to special model of crawler-tracked excavators and bulldozers from 1.5ton to 95.3ton . 2. Warm forging treated crane top roller group shell gains distinguishing inner material fiber flow distribution architecture. 3. Differential type of quenching or through type of quenching heattreatment can ensure certain heat treatment hardness depth and so give good anti-cracking effects. 4. The design of double-cone sealing and lubrication for life makes the carrier roller have long life time and perfect performance under any working condition. |
Our crane upper roller is applicable to below models:
Hitachi | KH100/30T,KH100-2/3KH125/35T,KH150/40T,KH180/50T,KH300/80T,KH500/100T, KH700/150T,KH850/150T, KH1000/200T |
Kobelco | P&H335/35T,P&H440S/40T,P&H550/50T,BM500HD,BM700HD,BM700HD-2,7035/35T,7045/40T,7055/50T,7080/80T,7090,7100/100T,7120,7150/150T,7200, 7250/250T,7300,CKE600,CKE800,CKE900,CKE1200,CKE1800,CKE2500 |
Sumitomo | SC500-2/50T,SC700/70T,SC2500/250T,LS78R,LS108/40T,LS118-5/50T,LS120,LS218/80T,LS238/100T,LS248/150T,LS368,LS468,SA1700 |
IHI | CCH250W,CCH280W,CCH500/50T,DCH700/70T,DCH800/80T,CCH800,CCH1500E, CCH2500/250T |
Minitowoc | 4100WS1/180-272T,4100S,4600S4/317.5,M250/250T,M2250/272T,M999/250T,M4600/317.5T,M18000/600T,M21000/1000T |
Demag | CC1400/250T,CC1800/300T,CC2000/300T,CC2200/350T,CC2400/400T,CC2500/450T, CC2800/600T,CC5800/1000T |
Sany | SCC500,SCC600,SCC750,SCC800,SCC1000,SCC1250,SCC1500,SCC1800,SCC2600,SCC4000,SCC6500,SCC7500,SCC10000,SCC16000 |
Zoomlion | QUY50,QUY70,QUY80,QUY100,QUY130,QUY180,QUY200,QUY260,QUY350,QUY400,QUY450,QUY500,QUY550,QUY600,QUY650,QUY800,QUY1000,ZTM300,ZTM500,ZTM750,ZTM800,ZTM550,ZTM3200 |
Note: the above part numbers shown are for reference purpose only. we do not imply that these items are products of the OEM
FAQ
1. Could you make customer logo?
Yes,we can make customer logos if it reach the moq for customer logo order.
2. If we don’t have drawings, could we develop a new item?
Yes, you can offer us the main dimension. Then we can compare with our ready products and make a drawing for your checking.
3. Could we be your exclusive dealer?
Yes,our policy is that we will not let our customer to compete at the same place.
4. Are you a manufacturer or a trader?
We are a manufacturer. We do forging and casting by ourselves. And our factory is located in Quanzhou city, Fujina, China.
Our company has strong new product development ability and fast response ability and advanced international design concept, we closely follow the development of new technology in the world, and launch all kinds of high performance and high reliability Carrier Roller for Hitachi Kh230-3 Crawler Crane. In the fierce market competition, we continue to explore and innovate and actively forge ahead. Customer satisfaction is our greatest wish. Our company is willing to work with you to carry out a heroic step towards a brilliant tomorrow. We carry out in-depth communication with customers for more accurate demand analysis.
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