6" Throat Maximus Bar & Dog Clamp

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Forged steel · Any length

Maximus Clamp

A forged steel arm and foot that slip over 2" x 1" tube. Cut the bar to the length you need and you have a bar clamp with a 6" throat.

6"Throat depth

12"Spindle length

24mmSpindle diameter

2,500+ lbOn 1/8" wall tube

10 lbPer set

What's in a set

Three parts. You bring the tube. Pick 1 set or 2 sets above.

6 inch Maximus forged steel arm with T-bar spindle and swivel pad

The working end

Arm

Throat: 6"
Fits: 2" x 1" tube
Material: Forged steel
Pieces: 1 per set

Deep reach past flanges
Slides on, no hardware
Locks under clamp load

The fixed jaw

Foot

Throat: 6"
Fits: 2" x 1" tube
Pad: Grooved, rotates
Pieces: 1 per set

Pad turns to sit flat
V-groove grabs round stock
Spring washer keeps it snug

The muscle

Spindle

Length: 12"
Thread length: 9"
Diameter: 24mm
Handle: Sliding T-bar

9" of travel
Swivel pad on the tip
T-bar for hand torque

Build it to the job

One set, any length. Here's how it goes together.

Fabricator sliding the Maximus arm onto a length of rectangular tube

Your tube

Cut your bar

Any length of 2" x 1" tube.

Foot

Slip on the foot

No bolts. It slides over the end.

Bar clamp

Run the spindle

Spin it down, snug with the T-bar.

Build it to the job

One set, any length. Here's how it goes together.

1
Cut your bar
Any length of 2" x 1" tube. Short for the bench, long for the floor.
2
Slip on the foot
No bolts. It slides over the end.
3
Run the spindle
Spin it down, snug with the T-bar.

Two Maximus clamps on bars of different lengths on a shop floor, one spanning several feet

As long as your tube

The bar is the part that wears out or comes up short. So you make it.

Cut a new bar for each job
One set covers bench and floor work
Bent bar? Cut another, keep the clamp
2" x 1" tube not included

Maximus clamps holding square tube posts upright on a large welded steel frame

Why forged steel

Heavy work needs a heavy clamp. Each set weighs 10 lb.

2,500 lb or more on 1/8" wall tube
6" throat vs 2" on a pipe clamp
24mm spindle vs 3/4" on a pipe clamp

Maximus vs the other guys

Next to a standard pipe clamp.

Maximus

Clamp force: 2,500 lb at 24" on solid bar
Bar: 2" x 1" material
Throat depth: 6"
Spindle: 24mm
Finish: Black oxide

The other guys

Standard orange pipe clamp on 3/4 inch pipe

Bar: 3/4" pipe
Throat depth: 2"
Spindle: 3/8"

Built for a bending bar

Every bar clamp bends the tube under load. The longer the bar, the more it deflects. Here's how the Maximus deals with it.

1The problem

When the bar bends, a straight arm tips the spindle out of line. It pushes at an angle and the part slips.

Illustration of a bar clamp holding a part on a straight bar — Clamp set, bar straight

Illustration of the bar bending under load and the spindle tipping out of alignment, shown with a red line — Bar bends, spindle tips

2The fix: a preload angle

The arm is built with a set angle. When the bar bends under load, the spindle comes back into line.

Illustration of the Maximus arm on a straight bar with the spindle angled up — Arm angled from the start

Illustration of the Maximus clamp tightened on a part before the bar bends — Clamp on the part

Illustration of the bar bending under load while the spindle stays straight, shown with a green line — Bar bends, spindle straight

3Short bar or long bar

The angle keeps the spindle straight within range on a short tube or a long one.

Illustration of the Maximus clamping a small block on a short bar — Short bar, clamp set

Illustration of a short bar bending under load with the spindle still in line, shown with a green line — Still in line

6 inch Maximus dimensions: 12 inch spindle, 9 inch thread length, 6 inch throat depth

Specs

MaterialForged steel, black oxide
Throat depth6"
Spindle12" long, 9" of thread, 24mm
Tube2" x 1" rectangular (not included)
Clamping2,500 lb+ with 1/8" wall tube
Weight10 lb each set
Part no.F5-BCL2211-PPK · 2 Sets F5-BCL2211-2PPK

In the box

1Arm with spindle
1Foot with pad

Per set. The 2 Sets pack doubles everything.

Replacement parts

Worn out a part? Find it on the clamp, then grab just that piece. Sold separately

6 inch Maximus clamp parts: foot with V pad on top, arm with spindle and spindle pad below

1

F5-BCL2211-HS

6" Arm

The arm the spindle threads through.

Shop → 2

12 inch Maximus spindle with T-bar handle and spindle pad

F5-BCS012-BO

12" Spindle and Pad

Same length as the spindle on this clamp.

Shop → 3

F5-BCS200-PADKIT

Spindle Pad with Clip

The pad on the tip of the spindle.

Shop → 4

F5-BCL2211-FP

6" Foot

The fixed jaw on the end of the tube.

Shop → 5

F5-BCP100-PADKIT

Bottom V Pad Kit

The pad on the foot.

Shop →

Videos

Why we built it, and how to swap the spindle.

I got tired of destroying clamps, so I made this instead

How to install the spindle

Your tube sets the limit. Clamp force tops out at what your bar can hold, not the clamp. Heavier wall, more force.

Quick answers

What tube do I need?

2" x 1" rectangular tube, any length. 1/8" wall gets you 2,500 lb or more. Thinner wall flexes sooner.

Is the bar included?

No. You get the arm, spindle and foot. Cut your own bar to the length the job needs.

What's the dog clamp setup?

Tack a short stub of 2" x 1" tube to your work or table. Slide the arm on and clamp down. Grind the stub off when you're done.

1 set or 2 sets?

2 sets lets you clamp both ends of a long part or hold two posts at once. Same parts, same price per set.

Can I get replacement parts?

Yes. Arms, feet, spindles and pads are all sold on their own. See Maximus Replacement Parts.

Why does the arm sit crooked on the tube?

It's meant to. The arm has a preload angle built in. When the bar bends under load, the spindle comes back into line instead of tipping. See "Built for a bending bar" above.

6" Throat Maximus Bar & Dog Clamp - Forged Steel