Guangzhou Shangshun Engineering Machinery Parts co. LTD
Guangzhou Shangshun Engineering Machinery Parts Co., LTD. Our mission: Make a living at it, be good at it; High-profile work, low-key life; Customer first, mission will reach! Our concept: OKJ make
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Caterpillar Replacement Parts Hardness C7 Piston 238 2689 02 Cat Spare Parts
Hardness C7 Piston 238-2689-02 For Excavator Diesel Engine High Wear Resistance For Cat
In recent years, in order to reduce the friction work, improve the mechanical efficiency, reduce the ring height and shorten the piston compression height and total height, the number of piston rings is decreasing.
From the 30 s 5~6 ring groove development to 2~3 ring groove. It was found that more than one compression ring was not necessary, because if the upper compression ring failed, the other compression rings could not seal the gas in the combustion chamber from leaking into the crankcase, nor could they control the oil up the cylinder wall into the combustion chamber.
Therefore, instead of increasing the number of piston rings, it is better to take measures to improve the performance of piston rings, with a compression ring and two oil ring grooves to ensure the completion of sealing gas and oil control.
Piston type and surface treatment : Alfin Reinforcement
Created for operation in high temperature environment like turbo engines.
Moly Skirt : Help produce less frictional heat and engine noise.
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Nitriding: The nitriding products have excellent wear resistance, fatigue resistance, corrosion resistance and high temperature resistance .
Product Description
| Model | C7 |
| Sample order | Availiable |
| Warranty | 2 years |
| Payment | TT L/C Westion Union |
| MOQ | 1 Set |
| Place of original | China |
| Advantage | High silicon high nickel |
| Delivery Time | Within 3 days after payment |
| Packing | Standard exporting packing or as required |
Piston type & surface treatment
Alfin Reinforcement
Piston with alfin reinforcement are resistant to compression ring groove wear . the alfin reinforcement also act as a heat barrier minimizing heat conduction from piston skirt area. Such pistons can thus withstand the demand for higher load and highet performance engine .
Cooling Gallery
Created for operation in high temperature environment like turbo engines. Through oil circulation in the gallery, pistons are intensively cooled in the piston crown and ring belt area .
Anodized Crown
Anodization of piston crown creates a hard crown surface thus providing pistons with extra protection against crown piting and wear .
Tin Coating
Tin coated surface provides extra lubrication and smoother running of cylinder components resulting in longer engine lifetime .
Moly Skirt
Help produce less frictional heat and engine noise. The extra lubricative effect also minimize cylinder bore wear and prevent piston scuffing .
Phosphating
Reduce tge fructuib from with the cylinder liner . And to protect the piston from corrosion .
Nitriding
The nitriding products have excellent wear resistance, fatigue resistance, corrosion resistance and high temperature resistance .
1. We can develop new items for you especially
2. We have more than 15 years in construction machinery parts in oversea market
3. Honesty and trustworthiness in business
4. 96% customers give positive feedback from abroad and domestic market
5. Standard packing or according to your specification requests
FAQ
Q1: We can see from the pictures why the color of your products is darker than ordinary affiliates?
A1: That ’s because our pistons are high-silicon and high-nickel, so the color will be darker.
Q2: What are the benefits of high silicon and high nickel?
A2: We can refer to their performance, we can know that high silicon and high nickel products have better lubricity and higher quality, so their service life will be longer.
Q3: In addition to all the advantage above, does your product have any other highlights?
A3: There are also more cooling pipes inside our pistons to facilitate better heat dissipation and make the product last longer.
Our Product Range
| CAT | S6K-T 3306 3116 3126 C7 3204 3208 3406 C9 C-9 C4.2 320D |
| Mitsubishi | 4D30 4D34 6D34 S4E S6K 4M40 4D55 6D22 8DC9 4DR5 S6A S6B 6D31 6D14T 6D15T 6D16T 4D31T 6D24T 6D34 S4K |
| Hino | H07CT H06CT J05E J08E |
| engine piston | piston ring | cylinder liner/sleeves |
| liner kit | bearing set | valve&seat&guide |
| engine block | cylinder head | gasket kit/overhaul kit |
| head gasket | connecting rod | crankshaft |
| oil cooler | turbocharger | camshaft |
| couping set | fan cooling | engine assy |