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August 26,2026
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CDT3MX5-25-18-200F
Name: Rexroth - Bosch Tie Rod Cylinder (Single Rod Cylinder) (CDT3 - MX5) 25mm , Stroke = 200mm Description: Rexroth Tie Rod Cylinder CDT3 - MX5 (25mm Piston)
The MX5 mounting type for the Bosch Rexroth CDT3 tie rod cylinder is defined in the official ordering code as a "tapped hole at cylinder head" . This configuration allows the cylinder to be mounted directly using threaded holes in the head flange.
I've confirmed the key technical details and some dimensional data for this specific series and configuration from the official Bosch Rexroth documentation.
📊 Confirmed Technical Specifications
The following table outlines the core parameters of the CDT3 series and this specific configuration, as per the official RE 17051 document :
Parameter Specification
Series CDT3 (Tie Rod Cylinder)
Mounting Type MX5 - Tapped hole at cylinder head
Nominal Pressure 160 bar (16 MPa)
Maximum Operating Pressure Up to 210 bar (only for static load)
Standards ISO 6020-2, DIN 24554
Piston Diameter (ØAL) 25 mm
Piston Rod Diameter (ØMM) 12 mm or 18 mm
Stroke 200 mm (max. stroke up to 3000 mm)
📏 Permissible Stroke Length
One of the most critical engineering considerations for a cylinder with a long stroke is rod buckling. The following table, derived from a Rexroth catalog, shows the maximum permissible stroke length for the CDT3 series with mounting types ME5, MX3, and MX5 based on the piston rod diameter and operating pressure .
For your 25mm piston with a 200mm stroke, the data confirms the following:
With a 12mm piston rod, the permissible stroke is approximately 335mm at 160 bar, meaning your 200mm stroke is well within the safe limit .
With an 18mm piston rod, the permissible stroke reaches the maximum available length of 600mm at all pressures .
⚠️ Important Design Considerations
The official Bosch Rexroth documentation (RE 17051) notes a few key design limitations for this configuration :
Line Connection: With a piston diameter of 25 mm, only line connection "B" is possible .
Cushioning: With mounting type "MS2" and a 25mm piston, adjustab
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