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Enerpac RACH306 Aluminum Hollow-Plunger Hydraulic Cylinder

American-engineered 30-ton aluminum hollow-plunger hydraulic cylinder featuring a 150 mm stroke, 700 bar working pressure, single-acting spring return, and lightweight hard-anodized body weighing only 11.2 kg.

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 Product Overview

The Enerpac RACH306 is a high-performance, lightweight aluminum hollow-plunger hydraulic cylinder engineered for pulling, pushing, tensioning, and extraction applications. Manufactured by Enerpac, this single-acting cylinder utilizes high-pressure hydraulic power to advance the plunger, integrated with an internal heavy-duty spring for automatic retraction upon pressure release.

Featuring a durable hard-anodized aluminum body, the RACH306 provides an exceptional strength-to-weight ratio, making it highly portable for site work and tight jobsite environments. Its hollow-plunger design permits threaded rods, cables, or anchor bolts to pass directly through the cylinder body, providing flexible hydraulic force for specialized foundation and structural tensioning tasks up to 10,000 psi (700 bar).

 Key Applications

  • Tie-back anchor and cable tensioning in geotechnical and foundation engineering.
  • Structural bolt and rod pulling or extraction in steel construction works.
  • Controlled heavy equipment alignment and positioning in industrial maintenance.
  • High-force pressing and separation tasks requiring portable, lightweight hydraulic tooling.

Condition & Availability

This unit is offered in used condition (perfect condition) and is fully functional, inspected, and ready for operation.

Why Buy From Us

  • Expert technical support
  • Equipment inspection and verification
  • Competitive pricing
  • Trusted supplier for foundation equipment

Additional information

Weight 668 kg
Manufacturer / Brand

Enerpac (USA)

Model / Type

RACH306

Equipment Series

Enerpac RACH Series

Cylinder Type

Single-Acting, Spring-Return, Hollow-Plunger Hydraulic Cylinder

Nominal Capacity Class

30 Ton Class (358 kN / ~36.5 Metric Tonnes Advance Force)

Max Operating Pressure

10,000 PSI / 700 Bar

Stroke Length

150 mm (5.91 in)

Center Hole Diameter

34 mm (1.34 in)

Retracted Height

333 mm (13.12 in)

Extended Height

483 mm (19.02 in)

Outside Diameter

130 mm (5.12 in)

Plunger Diameter

70 mm (2.76 in)

Effective Piston Area

51.1 cm² (7.92 in²)

Oil Volume Required

766 cm³ (46.77 in³)

Body Material / Finish

Anodized Aluminum

Hydraulic Connection

CR400 Coupler (with dust cap)

Base Mounting Pattern

M6 threads (110 mm bolt circle, 12 mm depth)

Product Weight

11.2 kg (24.6 lb)

Compliance Standard

ASME B30.1