RIDGID 41855 Model 300 Power Drive Pipe Threading Machine – 115V, 38 RPM

The RIDGID 41855 Model 300 Power Drive Pipe Threading Machine is a high-capacity 38 RPM power drive that takes the effort out of threading pipe and rod. Backed by RIDGID's rugged durability, it handles demanding residential, commercial, and industrial work while staying simple enough to adapt to different setups. The unit includes a RIDGID speed chuck and pairs with Model 975, 916, 918, and 920 roll groovers, making it a versatile hub for your threading and grooving jobs.

RIDGID Model 300 Power Drive at the Jobsite

The 1/2 HP universal motor is reversible, giving you consistent power for threading and the flexibility to back out a die quickly. With 38 RPM output, the power drive keeps the cut smooth and controlled, even on larger pipe sizes. The RIDGID speed chuck grips the pipe securely, reducing the risk of slipping and making the work safer.

RIDGID 41855 Carriage Installation

To install the optional carriage, place the power drive on a flat surface, align the carriage mounting holes with the base, and secure it with the supplied hardware. Once mounted, the 811A die head can be attached to the spindle. This turns your power drive into a portable threading setup that can be used with a manual threader or carried to different job locations.

How to Add a Die Head to RIDGID 41855

Slide the die head onto the spindle, engage the drive pins, and tighten the locking collar. Always disconnect power before changing heads. The 811A die head is the common choice for this power drive and accepts standard RIDGID die segments.

Portable Setup vs. Stationary Use

The Model 300 can be used on a bench in the shop or converted to a portable threading machine. By adding the carriage or using a manual threader, you can thread pipe in the field without dragging a full threader along. Pair it with compatible RIDGID roll groovers to handle both threading and grooving from one power source.

Keep It Productive

Clean the chuck and spindle after each job, and store the unit in a dry location. For detailed torque specs and setup instructions, see the RIDGID 41855 manual.