Rexroth CYM Cylinder | CYM1MT4/80/45/135 | MT4 Trunnion Mount | 160bar Hydraulic

CYM Series Industrial Mill-Type Hydraulic Cylinder (MT4 Mount)

Product Overview:

The CYM series represents a premier line of compact mill-type cylinders engineered for 2026 automated production lines, die-casting, and heavy machinery. This model, CYM1MT4/80/45/135, features an intermediate trunnion mount, delivering exceptional stability in oscillating applications. Spanning bore sizes from $40\text{mm}$ to $160\text{mm}$, this series is a vital component for high-frequency and high-precision industrial drives.

Core Model Specifications:

• Main Model: CYM1MT4/80/45/135A20/B11CGUMS37324

• Specifications: $80\text{mm}$ Bore, $45\text{mm}$ Rod, $135\text{mm}$ Stroke.

• Part Reference: R407028950 (OEM Compatibility).

Key Technical Advantages:

• MT4 Trunnion Mounting: The intermediate trunnion design allows the cylinder to pivot during operation, effectively compensating for lateral loads caused by mechanical misalignment and significantly extending seal life.

• CGU Advanced Sealing: Equipped with the B11CGUMS seal group, offering ultra-low breakaway friction and superior wear resistance. Ensures zero “stick-slip” motion even at low speeds and eliminates internal bypass leakage.

• High-Strength Mill-Type Design: The barrel is crafted from high-grade steel with a precision-honed bore for maximum fatigue strength. Maintains superior structural stability compared to tie-rod designs at $16 \text{ MPa}$ ($160 \text{ bar}$).

• Precision Chromed Rod: The $45\text{mm}$ rod is hard-chrome plated, providing high surface hardness and smoothness. It ensures excellent corrosion resistance and protection against mechanical scratches.

• $100\%$ Physical Interchangeability: Manufactured strictly to Rexroth industrial standards, allowing seamless replacement of original units and minimizing downtime for 2026 digital factories.

Detailed Technical Specifications:

• Bore Series: $40, 50, 63, 80, 100, 125, 160 \text{ mm}$.

• Nominal Pressure: $16 \text{ MPa}$ ($160 \text{ bar}$).

• Stroke: $135 \text{ mm}$ (Customizable).

• Mounting Style: MT4 (Intermediate Trunnion).

• Compatible Mediums: Mineral oils, anti-wear hydraulic fluids, and synthetic lubricants.