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
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65.6-ton capacity with 6-inch stroke
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Hollow plunger for pushing, pulling, and tensioning applications
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Lightweight aluminum construction – easier handling without loss of strength
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Hard-coat anodized finish for corrosion and wear resistance
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Integral stop ring prevents over-travel for added safety
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Composite bearings reduce wear and extend service life
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Collar threads and base mounting holes for flexible mounting
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High-strength return spring ensures fast plunger retraction
Compatible Chemicals
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Enerpac HF Series hydraulic oils
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Biodegradable and fire-resistant hydraulic fluids
Included Accessories
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Standard CR-400 coupler
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Removable hollow plunger saddle
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Protective dust cap
Compliance
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Meets ASME B30.1 safety requirements
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Manufactured in ISO 9001-certified facilities
Benefits for Industrial Users
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Versatile hollow plunger design supports both pulling and pushing applications
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Lightweight build reduces operator fatigue and improves mobility
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High load capacity ensures reliable performance in critical jobs
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Increases productivity in heavy-duty construction, maintenance, and testing applications





