Capital Tooling- Puller Guns & Power Paks

Puller Guns

Puller guns are hydraulically powered units used to pull a mandrel through the workpiece. The majority of holes under ²⁷/₆₄" (11.0 mm) diameter in aluminum can be coldworked with the smallest gun, the WCI-300. Larger holes require bigger guns as pull force is proportional to hole size, material strength, and stackup thickness.

300 Puller Gun

Puller Model No. Stackup
in (cm) A
in (cm) B
in (cm) C
in (cm)

WCI-300

For mandrel sizes 4-0 thru 12-3 -10 1.0 (2.5) 11.7 (29.7) 3.0 (7.6) 1.5 (3.8)

-20 2.0 (5.1) 13.7 (34.8) 4.0 (10.2) 1.5 (3.8)

-30 3.0 (7.6) 15.7 (39.8) 5.0 (12.7) 1.5 (3.8)

9,200 lbs pull force at 10,000 psi hydraulic pressure (4,200 DaN @ 691 Bar)
Used to pull up to a ²⁷/₆₄" (11.0 mm) diameter mandrel in aluminum
Trigger guard for greater worker safety
Weight: approximately 6 lbs. (2.7 Kg)

350 Puller Gun

Puller Model No. Stackup
in (cm) A
in (cm) B
in (cm) C
in (cm)

WCI-350

For mandrel size to 16-3 -10 1.0 (2.5) 11.7 (29.7) 3.0 (7.6) 1.5 (3.8)

-20 2.0 (5.1) 13.7 (34.8) 4.0 (10.2) 1.5 (3.8)

-30 3.0 (7.6) 15.7 (39.8) 5.0 (12.7) 1.5 (3.8)

17,600 lbs. pull force at 10,000 psi hydraulic pressure (7,500 DaN @ 691 Bar)
Used to pull up to a ³⁵/₆₄" (14.0 mm) diameter mandrel
Trigger guard for greater worker safety
Weight: approximately 8 lbs. (3.8 Kg.)

400 Puller Gun

Puller Model No. Stackup
in (cm) A
in (cm) B
in (cm) C
in (cm)

WCI-400

For mandrel sizes 12-0 thru 20-3 -10 1.0 (2.5) 13.9 (35.3) 4.4 (11.2) 2.25 (5.7)

-20 2.0 (5.1) 15.9 (40.4) 5.4 (13.7) 2.25 (5.7)

-30 3.0 (7.6) 17.9 (43.2) 6.4 (16.2) 2.25 (5.7)

27,600 lbs pull force at 10,000 psi hydraulic pressure (12,600 DaN @ 691 Bar)
Used to pull up to a ⁴³/₆₄" (17 mm) inch diameter mandrel
Trigger guard for greater worker safety
Weight: approximately 13 lbs. (5.9 Kg.)

Restricted Access Solutions

Hand Puller

The WCIS-HP-20 is a manually operated wrench-type puller for use where access is very limited or only a few holes need to be coldworked. It can pull stackups to 2", and uses standard 300 series mandrels. A pilot is manually inserted from the rear to solidify the mandrel during coldworking. The WCI-HP-20 includes a storage box and ratcheting wrench.

Dimensions shown in inches and (centimeters)

Power Pak Units

All puller guns, except the WCIS-HP-20 hand puller, require a hydraulic power supply to operate. WCI offers two air powered units, the WCI-30, a small unit meant for low volume coldworking, and the WCI-10000 units, offering greater speed and intended for higher volume applications. Both units include an automatic lubrication system for mandrel lubrication.

WCIS-H10000

The WCIS-H10000 is a factory-oriented hydraulic power supply, able to pull a mandrel through the workpiece in less than one second. It is powered by a 2.2 HP air driven intensifier piston pump. The the H10000 produces 10,000 psi (691 Bar).

Does not require air-line oiler
Caster mounted for easy portability
Fail-safe system—air leak in trigger system will cause the pump to cease to function
Quiet—only 75 dBA max
Air supply—70 CFM @ 90 psi (1,960 L/min @ 6.22 Bar), ¹/₂" or larger hose
Dimensions—13½" wide x 18½" long x 18" tall (34.3 x 47 x 45.7 cm)
Weight—77 lbs. (35 Kg.)

WCI-30

The WCI-30 is a small, economical unit designed for applications where only a few holes need to be coldworked, such as aircraft repair shops, or where mobility is a prime requirement, such as special access situations where a larger power pak would be cumbersome.

Weighs only 23 pounds for easy portability
Supplies up to 10,000 psi (691 Bar) hydraulic pressure
Requires 90 psi (6.22 Bar) clean, dry air, ¹/4" ID air line
¹/3 HP air motor
Only 10" high,10" wide and 15" long (25.4 x 25.4 x 38.1 cm)

Hose Assemblies

The hose assembly connects the puller gun to the power-pak. It consists of three hoses: a high pressure hydraulic hose and two low pressure air lines. Assemblies are available in standard lengths of 10', 15', and 20', (3, 4.5 and 6 m) or other lengths by special order. All necessary fittings are included.