China PC1250 Bottom Roller OEM Heavy Duty 21N-30-00121 Manufacturer and Supplier | TCT

PC1250 Bottom Roller OEM Heavy Duty 21N-30-00121

Short Description:

Place of origin:ChinaBrand name: PT’ZMBrand name: KomatsuModel number: PC1250Parts number:21N-30-00121Minimum order quantity: 1 PCSupply Ability:1000 pcs /monthPrice: NegotiateDelivery time: 7-30 daysPayment term: L/C T/TPrice term: FOB/ CIF/ CFRApplication:  ExcavatorCustom-made or OEM is acceptable


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What are the production advantages of PC1250 bottom roller

We specialize in manufacturing the whole set of undercarriage parts for 200 ton mining excavators. Now we have completed the PC1250 front idler, track and carrier roller, sprocket segment rim, chain assembly. More about the PC1250 bottom roller advantages are as follows:

The material of bottom roller body is forged by 40Mnb2. High wear resistant Boron steel ,and the surface heat treatment HRC 48-55 depth up to 5-8mm. Precision CNC machine machining size is more accurate .Perfect interchangeability with original products

The material of the center shaft of the track roller forged by 42CrMo.The hardness of surface heat treatment can reach 48-55HRC More wear-resisting . Core hardness of HRC 28 or above is not easy to fracture. Tempering 180 degrees before finishing. The surface of the center shaft of the track roller is polished by CNC machine tool to make the shaft smoother.

High sealing aprons are used inside the track roller to prevent dirt, sand and water from damaging it.

The track roller using friction welding technology welding quality is good and stable, and environmental protection, no pollution.Welding process does not produce smoke or harmful gas, no splash, no lone light and spark, no radiation.Known as the green welding technology of the future.

Komatsu PC1250 excavator undercarriage parts number list

Track Link Assy

48L

21N-32-00101

Track Shoe

700MM

21N-32-31110

Idler Assy

21N-30-00111

Carrier Roller

21N-30-00130

Track Roller

21N-30-00121

Sprocket

25T-38H

21N-27-31191

What is the bottom roller function

The function of the track roller is to convey the weight of an excavator to the ground . When an excavator is run on uneven ground, track rollers carry a tremendous impact. Therefore, the support of track roller is huge. Moreover, if it is of poor quality and is often dusty, it needs a very good sealing to prevent dirt, sand and water from damaging it.

Detail information

Description: Bottom Roller Mining Excavator Equipment
Place of origin: China
Brand name: PT’ZM
Model number PC1250
Brand: Komatsu
Parts number: 21N-30-00121
Price: Negotiate
Packaging details: Fumigate seaworthy packing
Delivery time: 7-30 days
Payment term: L/C T/T
Price term: FOB/ CIF/ CFR
Minimum order quantity: 1 PC
Supply Ability: 1000 PCS/month
Material: 40Mnb2/42Crmo
Technique: Forging
Finish: Smooth
Hardness: HRC48-55, depth  5-8mm
Quality: mining operation heavy duty
Warranty time: 24 months
After-sales service: Video technical support, Online support
Color: Yellow or Black or Customer required
Application: Crawler Excavator

Main technical parameter for Komatsu PC1250 bottom roller

Model A B C D E
PC1250 388 550 480 372 300
F G H I
126 276 320 180


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