C25, D25 High-pressure Heavy-duty Hydraulic Cylinders
4 week ago
Product details
C25, D25 High-pressure Heavy-duty Hydraulic Cylinders
1. Product Overview
C25 and D25 series hydraulic cylinders are high-pressure heavy-duty single-rod double-acting cylinders, widely adopted in metallurgy, forging, heavy machinery industry.
C25 is front flange mounting type; D25 is rear earring/hinge mounting structure. This series features compact structure, high bearing capacity, strong anti-biased load capability. The cylinders can adapt to heavy load, frequent reciprocating motion and impact working conditions. It can be used for new equipment supporting and replacement maintenance of metallurgical production lines, hydraulic presses and forging machinery. Standard products and customized cylinders with special stroke, sealing configuration are available.
C25, D25 High-pressure Heavy-duty Hydraulic Cylinders are robust heavy-load Hydraulic Cylinder. As key executive components of the hydraulic system, they convert hydraulic pressure energy into mechanical thrust to drive the movement of all kinds of industrial Machine. This series of Hydraulic Cylinder adopts reinforced heavy-duty structure design. When pressurized hydraulic oil is supplied from the hydraulic system, the piston assembly pushes the rod to output powerful linear force. Reliable and durable, these cylinders deliver stable driving power for heavy-duty Machine under continuous high-pressure working conditions.
Model Brief Explanation
- C25: High-pressure heavy-duty cylinder, front flange installation
- D25: High-pressure heavy-duty cylinder, rear hinged earring installation
- Rated pressure grade: 25MPa high pressure series
2. Main Technical Parameters
Item Specification
Series Model C25, D25 High-pressure Heavy-duty Hydraulic Cylinders
Nominal Working Pressure 25 MPa
Maximum Test Pressure 31.5 MPa
Working Medium ISO VG46 / VG68 anti-wear hydraulic oil; fire-resistant fluid optional
Operating Temperature -25℃ ~ +85℃; FKM sealing version up to 120℃
Standard Bore Range 50mm ~ 320mm
Speed Ratio 1.4 / 2.0 optional
Stroke Customized according to working requirements
Cylinder Barrel 27SiMn seamless steel tube, precision deep hole honing
Piston Rod 42CrMo alloy steel, medium frequency quenching + thick hard chrome plating
Seal Assembly NBR, PU composite seals; high-temperature fluorine rubber seals optional
Optional Configuration Built-in adjustable buffer, air vent valve
3. Working Principle
Pressure hydraulic oil enters the rodless chamber or rod chamber of the cylinder, pushing the piston assembly and piston rod to perform linear reciprocating movement, realizing pushing, lifting, clamping and forging actions of heavy equipment.
Built-in buffer structure (optional) absorbs impact at the end of stroke and reduces mechanical vibration. The complete sealing system effectively controls internal and external leakage and ensures stable output force under long-term continuous operation. Air vent valve can be equipped to eliminate gas inside cylinder and avoid crawling movement.
4. Core Advantages
1. Two mature mounting structures: C25 front flange, D25 rear hinge earring, convenient structural layout for different equipment frames;
2. Rated pressure up to 25MPa, strong output force, suitable for heavy load and periodic impact conditions;
3. Thick-walled cylinder barrel and high-strength piston rod, outstanding anti-deflection load performance, not easy to deform under eccentric force;
4. Precision honed cylinder tube and wear-resistant chrome-plated piston rod, low friction and long service life under continuous operation;
5. Multiple sealing solutions optional, can meet normal temperature, high temperature and different hydraulic medium requirements;
6. Support non-standard stroke and special technical requirements customization, flexible delivery scheme for engineering projects and maintenance orders.
5. Application Range
C25 & D25 high-pressure heavy-duty hydraulic cylinders are extensively applied in:
Metallurgical rolling equipment, continuous casting machinery, forging hydraulic press, heavy-duty clamping machinery, mine heavy equipment, steel plant conveying and turnover mechanism, large engineering hydraulic equipment.
6. Installation & Maintenance Suggestion
- Keep hydraulic oil clean; adopt high-precision filter element to prevent particle abrasion of cylinder barrel and piston rod surface;
- Avoid long-term eccentric load during operation. For long-stroke cylinders, add external guide supports properly;
- If equipped with buffer device, adjust buffer resistance gradually during commissioning, avoid excessive pressure peak;
- Regularly inspect dust wiper and sealing components; replace damaged seals timely to prevent oil leakage and dust intrusion;
- When working in high-temperature environment, select matched high-temperature resistant sealing assembly.
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