The Enerpac RACH606 Aluminum Hollow Plunger Hydraulic Cylinder combines high lifting capacity with the versatility of a hollow plunger design. With a 65.6-ton force and 6-inch stroke, this cylinder enables both pushing and pulling tasks — including tensioning rods, pulling cables, and pressing operations. Constructed from high-strength aluminum, it is up to 50% lighter than equivalent steel cylinders, making it easier to handle on-site without compromising performance.
Engineered for demanding environments, the RACH606 includes composite bearings to prevent metal-to-metal contact, a hard-anodized finish for enhanced durability, and a high-strength return spring for quick retraction. Whether used in heavy construction, plant maintenance, or workshop settings, it provides safe, efficient, and reliable hydraulic power.
Key Features
65.6-ton capacity with 6-inch stroke
Hollow plunger for pushing, pulling, and tensioning applications
Lightweight aluminum construction – easier handling without loss of strength
Hard-coat anodized finish for corrosion and wear resistance
Integral stop ring prevents over-travel for added safety
Composite bearings reduce wear and extend service life
Collar threads and base mounting holes for flexible mounting
High-strength return spring ensures fast plunger retraction
Compatible Chemicals
Enerpac HF Series hydraulic oils
Biodegradable and fire-resistant hydraulic fluids
Included Accessories
Standard CR-400 coupler
Removable hollow plunger saddle
Protective dust cap
Compliance
Meets ASME B30.1 safety requirements
Manufactured in ISO 9001-certified facilities
Benefits for Industrial Users
Versatile hollow plunger design supports both pulling and pushing applications
Lightweight build reduces operator fatigue and improves mobility
High load capacity ensures reliable performance in critical jobs
Increases productivity in heavy-duty construction, maintenance, and testing applications





