The Porta-Bender is the iron industry's most trusted tool for curving handrails.

The Porta-Bender

The Porta-Bender is an essential tool when working on a staircase that requires curved handrails. It's lightweight, simple to use, and built with quality parts by Phil Weaver himself. 

Why the Porta-Bend works

• It's lightweight, only weighing 18 lbs.

• Completely adjustable to fit a variety of handrails

• Easily fine-tune any adjustment

• Curve or staighten handrails


2-” Sq. Tube

2″ Channel

1-1/2′ Schedule 40 Pipe

2-1/4″ Caprail


5 ton Hydraulic Cylinder

2″ x 3/8″ Solid Steel Frame

1″ x 1/2″ Steel Arms


(plus shipping)

Here's what you can expect:

Learn more about the Porta-Bender and how it's saving builders time and money on adjusting curved handrails for staircases.

In order to maximize the number of potential applications, as well as maximize the life of the Porta-Bender, it is important for the user to exercise proper operation and fully understand its capabilities & limitations listed.

Useful Tips

Things to Remember

• The cylinder shaft screw (Allen head), Which holds the anvil block, MUST be tight at all times of use.

• Keep all work centered with a cylinder. Tack blocks on arms as needed. (Failure to tighten screw and center all work may result in warping or stripping of the cylinder.)

• When bending or straightening a piece (long pieces especially) it is best to make several passes along the entire length versus trying to complete it in only pass.

1.) It is important not to bend too much at a time.
2.) Make 2 to 3 passes over a piece and alternate your contact points for a smooth bend.

3.) About 4-6″ travel should work well in most situations.

4.) About all material has spring back, so you must go a little further to get what you want. Cold rolled steel is real bad about spring back.

5.) On spiral stairs, put a screw at the bottom to hold your channel (If they don’t have tile down). Then start bending your radius using two large cresent wrenches to keep it laying flat on the steps.

Get the most out of your Porta-Bender

**The anvil block can be set in either vertical or horizontal position, depending on application or preference.

**Before using the Porta, Bender on a new type of rail, picket, etc… it is wise to perform some tests on that type of material before using on the actual piece. Much of the technique involved is a result of each person developing a feel for the machine. Practice and use the methods that work best for you.n the steps.

Contact Us

If you have any questions regarding the operations of the Porta-Bender, feel free to send us a message or give us a call.