| Customization: | Available |
|---|---|
| Type: | Clay Dry Sand |
| Casting Method: | Thermal Gravity Casting |
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1. Seals kit: From USA, durable and hard-wearing with long service life.
2. Heat treatment: Quenching&Tempering which makes the piston rod super high hardness.
3. Cleaning: Ultrasonic cleaning.
4. Cutting: High precision provided by automatic roller cutting machine.
5. Testing: Ultrasonic detector, spectrograph, CMM, metallography, chrome thickness tester.
6. Advantage: Simple structure & reliable work, easy maintenance & diverse connecting ways.
7. Plan: Different manufacturing plans for different customers.
8. MOQ: 10 PCS of hydraulic cylinders ram
9. Lead time: 10~30 days depends on quantity & whether customized.
10. Warranty: Change a new one and we pay for the air freight in 3 years warranty time.
1.Descriptions of Chrome Plated Shaft
| Size | 25.4~100mm |
| Length | 0.2m~2m |
| Material | 45#DIN CK45/JIS 45C |
| Tolerance | ISO f7 |
| Chrome Thickness | 25~30micron |
| Hardness of The Chrome Layer | 45~50HRC |
| Roughness | Ra0.4micron |
| Straightness | 0.2/1000mm |
| Yield Strength | ≥320Mpa |
| Tensile Strength | ≥580Mpa |
| Elongation | ≥15% |
| Supply Condition | 1.Hard chrome plated |
| 2.Induction hardened | |
| 3.Quenched&Tempered | |
| 4.Induction hardened with Q&T |
2.Chemical Composition
| Material | C% | Mn% | Si% | S% | P% | V% | Cr% |
| CK45 | 0.42-0.50 | 0.50-0.80 | 0.04 | 0.035 | 0.035 | ||
| ST52 | 0.22 | 1.60 | 0.55 | 0.035 | 0.04 | ||
| ST37 | 0.17 | 1.60 | 0.55 | 0.04 | 0.04 | ||
| 20MnV6 | 0.16-0.22 | 1.30-1.70 | 0.10-0.50 | 0.035 | 0.035 | 0.10-0.20 | |
| 42CrMo4 | 0.38-0.45 | 0.60-0.90 | 0.15-0.40 | 0.03 | 0.03 | 0.90-1.20 | |
| 40Cr | 0.37-0.45 | 0.50-0.80 | 0.17-0.37 | 0.08-1.10 |
3.Mechanical Properties
| Material | T.S N/MM² | Y.S N/MM² | E%(MIN) | Condition |
| CK45 | 610 | 355 | 15 | Normalized |
| CK45 | 800 | 630 | 20 | Q+T |
| ST52 | 500 | 355 | 22 | Normalized |
| 20MnV6 | 750 | 590 | 12 | Normalized |
| 42CrMo4 | 980 | 850 | 14 | Q+T |
| 40Cr | 1000 | 800 | 10 | Q+T |
Declaration:
Products shown herein are made to the requirements of specific customers and are illustrative of the types of manufacturing capabilities available within Densen group of companies.
Our policy is that none of these products will be sold to 3rd parties without written consent of the customers to whom the tooling, design and specifications belong.
Shenyang New Densen Casting and Forging Company is the sales company of Shenyang Densen Group of Companies. Features of New Densen simply summarized as below:
1. Trusted supplier of steel, iron & non-ferrous components;
2. Extensive documented quality program in place.
3. Castings, forgings, stampings, machining, welding & fabrication services.
4. 9 related factories, over 50 joint-venture sub-contractors.
5. 25+ years of manufacturing experiences, 10+ years of exporting experience
6. 100% of products sold to overseas customers.
7. 50% of customer base is forturne 500 companies.
Inspection:
Cyliders are 100% inspected .To make sure the cyliders no leakage .Also leave some oil inside for anticorrosion .
Application:
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