500 Mm Wide Replacement Digger Tracks , Komatsu D21a7 D21p7 Rubber Crawler Tracks
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1.Application
| Brand | Original Size |
| D21A7 (KOMATSU) | 500x71x72 |
| D21P7 (KOMATSU) | 500x71x72 |
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2. The notice of using rubber tracks
1.Adjust the tension of the rubber crawler so that the height, the variable range is 10-20mm when the machine is lifted. Readjust when the tension decreases. (Be careful because the rubber crawler may come off if the tension is too low).
2.Avoid projections from the frame around the rubber crawler, especially on its inner circumference. (Rubber crawlers are easily deformed; if it comes into contact with the frame, an accident such as the rubber being cut can occur).
3.Avoid sharp projections when travelling.
4.Avoid turning too fast on concrete roads with a high coefficient of friction because this can cause accidents such as cutting the rubber.
5.Be careful that no oil, ect adheres to the rubber track. If it does, wipe it off immediatedly.
6.When storing for long periods, keep indoors, away from direct sunshine and rain.
7.Replace as soon as possible when abrasion of the sprockets is observed.
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3.Parameters
Please noted that, the parameter just show the part of our size range, if you cannot find your size, please kindly inform us by email or other ways, we will customize for you.
| Excavator Rubber Track | ||||
| Width*Pitch length(mm) | Number of Links | Width*Pitch length(mm) | Number of Links | Width*Pitch length(mm) |
| 130*72 | 28-53 | 300*52.5K | 72-84 | 400*72.5KW |
| 150*60 | 28-49 | 300*52.5KW | 72-92 | 400*74 |
| 150*72 | 29-40 | KB300*52.5 | 72-92 | 400*75.5K |
| 170*60 | 30-40 | KB300*52.5N | 72-98 | B400*86 |
| 180*60 | 30-40 | JD300*52.5N | 72-98 | 400*90 |
| 180*72 | 30-58 | 300*53K | 80-84 | Y400*142 |
| 180*72K | 30-37 | 300*55 | 70-86 | 400*144 |
| B180*72K | 34-51 | 300*55.5K | 76-82 | Y400*144K |
| B180*72A | 30-51 | 300*71K | 72-55 | 420*100 |
| H180*72 | 30-50 | 300*109N | 25-42 | 450*71 |
| 190*60 | 30-40 | K300*109 | 37-41 | DW450*71 |
| 190*72 | 34-39 | 300*109WK | 35-42 | 450*73.5 |
| 200*72 | 34-47 | B300*84 | 78-52 | 450*76 |
| 200-*72K | 37-47 | T300*86K | 48-52 | 450*81N |
| 230*48 | 60-84 | 320*52.5 | 72-98 | 450*81W |
| 230*48K | 60-84 | B320*52.5 | 68-98 | KB450*81.5 |
| 230*72 | 42-56 | 320*54 | 70-84 | K450*83.5 |
| 230*72K | 42-56 | B320*86 | 49-52 | B450*84 |
| 230*96 | 30-48 | 320*90 | 52-56 | B450*86 |
| 230*101 | 30-36 | 320*100 | 38-54 | 450*90 |
| 250*47K | 84 | 320*100W | 37-65 | KU450*90 |
| 250*48.5K | 80-88 | Y320*106K | 39-43 | T450*100K |
| 250*52.5K | 72-78 | 350*52.5 | 70-92 | K450*163 |
| 250*72 | 47-57 | 350*54.5K | 80-86 | 485*92W |
| B250*72 | 34-60 | B350*55K | 77-98 | 500*90 |
| B250*72B | 42-58 | 350*56 | 80-86 | 500-92 |
| E250*72 | 37-58 | 350*75.5K | 74 | 500*92W |
| 250*96 | 35-38 | 350*90 | 42-56 | 500*100 |
| 250*109 | 35-38 | 350*100 | 46-60 | K500*146 |
| 260*55.5K | 74-80 | 350*108 | 40-46 | 600*100 |
| Y260*96 | 38-41 | 350*109 | 41-44 | 600*125 |
| 260*109 | 35-39 | Y370*107K | 39-41 | 700*100 |
| 280*72 | 45-64 | 400*72.5N | 70-80 | 750*150 |
| Y280*106K | 35-42 | 400*72.5W | 68-92 | 800*125 |
| 300*52.5N | 72-98 | Y400*72.5K | 72-74 | |
| 300*52.5W | 72-92 | KB400*72.5K | 68-76 | |
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9.Parameters for lug
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What you can get from us?
1.24 hours 7 days online service for you.
Although we have holidays, or weekends, we will try our best to reply you upon receving your requirement.
2.Offer special plan for you not just sell the product.
We can make special product plan according your requirement. More, we will advice you the optimal trade way according your condition. Our believe is, sell the optimal product and save money for our clients.
11.FAQ
1. Are you a trading company or Manufacturer?
We maufacture products by ourselves and we source from other collaborative factories too which guarantees a competitve price and product variety.
2. How do I know your quality?
We can take product photoes for your reference and show you different quality and you can compare with others
3. I'm a end user and I need small quantity, what do I do?
Pls check with our sales team if it's in stock, if have stock and we can send you via Dhl, Fedex and so forth.
4. Can I get a sample first? And how does it charge?
As practice, we will charge the sample, and after we received the bulk order, we will return the sample fee to our customer
5. What's the benefit for long term importers or distributors?
For those regular customers, we offer incredible discount, sample free shipping, free sample for custom design, custom packaging and QC as per custom requirements.
6. What is your terms of payment?
T/T 30% as deposit, and 70% before delivery. We received paypal western union and directly bank transfer to our company account.
7.Can you produce according to the samples?
Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
8.Do you test all your goods before delivery?
Yes, we have 100% test before delivery
9.How do you make our business long-term and good relationship?
We have good quality and competitive price to ensure our customers benefit.
We respect every customer as our friend and we sincerely do business with them.
Welcome to contact with us, Thank you very much.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.