Portable Presses

We back all our portable presses

with unparalleled customer service, starting at $3,100

We back all our portable presses with our unparalleled in-house customer service and application personnel. Our portable punch press lines include both web presses and flange presses, each designed to meet your specific needs. We also provide power units and a wide range of support equipment.

Begin building your perfect Piranha Shop today!

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Reducing “Hole” Costs

Punching Holes

costs less and is far faster.

Punching is one of the least expensive ways of making holes in structural shapes. Our hydraulic portable presses are high-quality machine tools that reduce “hole” costs because punching takes only a small fraction of the time required for drilling or burning holes. Punching also eliminates clean-up operations.

You can make money punching wide flange beams, columns, channel iron, angle iron, I-beams, plate and other materials.

Customer Case Studies

Piranha Advantages

Our versatile portable press lines

offer a wide range of advantages, including:

Brute force; Proven high pressure hydraulics-5000 P.S.I; Precise control; Smooth; Shock free

Double-acting hydraulics; No spring stripping

Rugged cast steel frame construction; Take abuse; Long life

Quick, easy tool change; Change hole size in minutes

Reduced material handling; Take presses to the work – don’t drag the work to the press

Complete punch cycle control; Jog punch to layout mark

Clean punched holes; Any shape; No burrs; Scrap removed as slug without messy chips

Lowest cost method; Just a few seconds per hole

Easy maintenance; Backed by W.A. Whitney Co. parts and services

Our “A” Series web and flange presses offer advanced features to improve production and prolong press life.

Web Press Models

Our web presses include standard models ranging from 20 to 90 tons, with adjustable eye brackets for horizontal or vertical suspension. Handgrips are optional on all models.

The A Series web presses are available from 90 to 150 tons and can use keyed punches and dies. They also offer automatic ram reversal and a replaceable die pocket. Hand grips and adjustable eye brackets for horizontal or vertical suspension are standard on these heavy-tonnage tools.

Model	Series	Quick View

WEB PRESS DIMENSIONS

Standard Web Presses – 20 to 90 Ton Capacities

20-90 Ton Web Press Dimensions Note: All dimensions are in inches.

MODEL	721	731	751	771	791
TONS	20	30	50	70	90
A (THROAT)	2-3/4	4-1/4	6-1/4	7-3/4	12-1/2
B	1	1	1-1/2	1-1/2	1-1/2
C	4-1/2	5-1/2	7-1/4	8-1/4	9-1/2
D	11/16	11/16	1-1/8	1-1/8	1-1/8
E	5/8	5/8	1-3/32	1-3/32	1-3/32
F	1-5/8	2-5/8	4-1/8	5-3/8	7-3/8
G	4-1/2	6-3/8	10	12-1/4
H	13-11/16	18-3/16	26-15/16	31-1/4	40-1/2
I	7/8	7/8	1-9/16	1-9/16	1-9/16
J	5-3/4	10-5/16	15-3/8	20-1/4	28-3/8
K	1-3/8	1-3/4	2-1/2	2-7/8	2-7/8
L	3-3/16	4-3/8	7-3/16	8-3/8	12
M	3/4	3/4	1-3/32	1-3/32	1-3/32
R	4	5	8	10	15
S	1	1-1/2	1-1/2	1-1/2	1-1/2
T	5-1/2	8-1/2	12-1/2	15-1/2	25
U	3-1/2	5-1/2	8-1/2	10-3/4	15-3/4
V	1-5/8	1-15/16	2-3/8	2-11/16	3-1/8
PART NO.	721-000	731-000	751-000	771-000	791-000

WEB PRESS DIMENSIONS

“A” Series Web Presses – 90 through 150 Ton Capacities

90-150 Ton Web Press Dimensions Note: All dimensions are in inches.

MODEL	791AX18	791AX30	7151AX12
TONS	90	90	150
A (THROAT)	18-1/2	30-1/2	12-1/2
B	1-1/2	1-1/2	1-9/16
C	9-1/2	11	13-1/2
D	1-3/32	1-3/32	1-7/16
E	1-5/16	1-5/16	2
F	8-1/2	8-1/2	8-1/2
G	21-1/2	26-1/2	23-1/4
H	49-3/8	56-5/8	57-1/4
I	1-9/16	1-9/16	2-1/8
J	41-1/2	60-1/2	37-1/2
K	2-7/8	2-7/8	3-1/4
L	13	15-1/4	17
M	1-3/32	1-3/32	1-9/16
N	18	18-1/4	17
P	14	6-1/2	16
Q	3/4-10	1/2-13	7/8-9
R	2-1/2	4	4-1/2
MTG. HOLES	4	4	4
S	6	29-3/4	5
PART NO.	791-019	791-020	715-112

Flange Press Models

Our standard flange presses are available in 20- to 90-ton capacities. Handgrips are optional on the 30- to 90-ton models.

Our A Series flange presses, available in 90 to 250 tons, offer automatic ram reversal replaceable die pockets. They can also use keyed punches and dies. Handgrips are standard on the 90- and 150-ton tools.

Select a model below to learn more.

Model	Series	Quick View

FLANGE PRESS DIMENSIONS

Standard Flange Presses – 20 to 90 Ton Capacities

20-90 Ton Flange Press Dimensions Note: All dimensions are in inches.

MODEL	720	720X6	730	730CC	730X8	750	770	790
TONS	20	20	30	30	30	50	70	90
A (THROAT)	2-1/4	6	3-1/8	3-1/8	8	4-1/4	4-1/4	4-1/4
B	1-5/8	1-9/16	1-15/16	1-15/16	2-1/8	2-1/16	2-11/16	3-1/4
C	4-1/2	4-1/2	5-1/2	5-1/2	5-1/2	7-1/4	8-1/4	9-1/2
D	11/16	11/16	1-1/8	11/16	1-1/8	1-1/8	1-1/8	1-1/8
E	5/8	5/8	21/32	21/32	21/32	1-3/32	1-3/32	1-3/32
F	1-7/16	1-7/16	1-7/8	1-7/8	1-7/8	2-5/32	2-5/32	2-1/4
G	2-1/2	3-3/4	3-1/4	3-1/4	5-1/4	4-1/4	4-3/4	5
H	10-5/8	11-7/8	11-7/8	12-11/16	15-3/8	16-1/4	17-3/4	18-5/8
I	7/8	7/8	1-5/8	7/8	1-5/8	1-9/16	1-7/16	1-5/16
J	5	11	7-1/4	7-1/4	13-1/4	9-1/4	9-3/4	10-1/4
K	2-1/4	2-1/4	2-3/4	2-3/4	3-1/2	3-1/2	4	4-1/2
L	1-7/8	2-1/8	2-11/16	2-11/16	3-1/8	3-3/16	3-7/16	3-1/2
M	1-1/4	1-5/8	1-7/8	1-7/16	2-3/16	2	2	2-1/8
R	3	3	4	4	4	5	5	5
PART NO.	720-000	720-044	730-000	730-020	730-019	750-015	770-015	790-024

FLANGE PRESS DIMENSIONS

“A” Series Flange Presses – 90 to 250 Ton Capacities

90-250 Ton Flange Press Dimensions Note: All dimensions are in inches.

MODEL	790AX6	7150AX6	7150AX12	7250AX12
TONS	90	150	150	250
A (THROAT)	6-1/4	6-1/4	12-1/2	12-1/2
B	3-1/4	3	3	5-1/2
C	9-1/2	13-1/2	13-1/2	17
D	1	1-7/16	2	2-1/16
E	1-5/16	1-5/8	1-5/8	1-5/8
F	3-11/16	4-1/8	4-1/8	4-3/16
G	8	10-9/16	13	16
H	24-13/16	32	34-3/8	44-1/4
I	1-9/16	2-1/8	3-1/8	2-5/8
J	17-1/2	23-1/4	33-1/2	38
K	5-5/8	7	7	11
L	4-3/4	5-7/8	5-7/8	9
M	3-1/4	4-1/2	6-1/2	5-1/2
N	3-13/16	4	6	7
P	5	12	16	19
Q	3/4-10	7/8-9	7/8-9	7/8-9
R	on CL	4-1/2	4-1/2	4-1/2
MTG. HOLES	2	4	4	4
PART NO.	790-084	715-028	715-029	817-333

Power Units and Support Equipment

Each portable press operates from a hydraulic Power Unit. These power units have an operating pressure of 5000 psi and are available in four different sizes.

Model	Quick View

Determining the Correct Hydraulic Power Unit

The basic difference between these models is the volume of oil each is capable of delivering to the press. This is further determined by the size of the pump motor. As a basic rule of thumb, the more horse power—the faster the press cycle time.

Two-Stage: The 1-1/2 HP hydraulic power unit is a two-stage type that delivers maximum flow at low pressures up to 1,000 psi and reduced flow up to 5,000 psi.

Single Stage: The 3, 10 and 20 HP hydraulic power units are all fixed displacement, or single stage, types. Fixed displacement power units are considered to be ideal for single hole punching where it is necessary to jog or inch the punch down for locating to a center punch mark. With this type of power unit, the oil is delivered at a fixed rate regardless of the operating pressure. This means that the ram on the press will travel at the same speed throughout the entire punching cycle. (The return cycle will be slightly faster due to the cylinder displacement differential.)

The size of the power unit required for any given application is determined by how fast you want the unit or units to cycle. The cycle time is shown using a full stroke of the press. When punching thinner material, it is not necessary to use the full stroke of the press, therefore, the cycle time will be faster.

Approximate Cycle Times