Introduction

This manual is provided by Powermatic covering the safe operation and maintenance procedures for a Powermatic Model 31A Combination Belt/Disc Sander. This manual contains instructions on installation, safety precautions, general operating procedures, maintenance instructions and parts breakdown. This machine has been designed and constructed to provide years of trouble free operation if used in accordance with instructions set forth in this manual. If there are any questions or comments, please contact either your local supplier or Powermatic. Powermatic can also be reached at our web site: www.powermatic.com.

Specifications

Model Number

31A

.................................................31A

Stock Number (1 Phase model)

1791291K

.......................................................

Stock Number (3 Phase model)

....................................... 1791292K

Abrasive Belt Size (in.)

6 x 48

..............................................6 x 48

Disc Size (in.)

12

................................................... 12

Table Working Height (in.)

34 disc, 36 belt

................................34 disc, 36 belt

Sanding Arm Locking Positions (deg.)

0, 45 and 90

....................................0, 45 and 90

Disc Table Size (in.)

17-1/4 x 9

........................................17-1/4 x 9

Disc Table Tilt (deg.)

15 up, 45 down

............................... 15 up, 45 down

Belt Table Size (in.)

13-1/4 x 7-1/2

..................................13-1/4 x 7-1/2

Belt Table Tilt (deg.)

45 down

..........................................45 down

Disc Speed (RPM)

2375

............................................... 2375

Belt Speed (SFPM)

2410

............................................... 2410

Dust Port Diameter (in.)

4

..................................................... 4

Dust Collection Minimum CFM Required

400

................................................. 400

Motor

1-1/2HP, 1PH, 115/230V

.....................2HP, 3PH, 230/460V 1

(pre-wired 115V), 60Hz, 14/7A

(pre-wired 230V), 60 Hz, 7/3.5A

Recommended circuit 2

30/20

.............................................. 20/10

Overall Dimensions (LxWxH)(in.)

24 x 31-1/4 x 54-1/2

........................ 24 x 31-1/4 x 54-1/2

Net Weight (lbs.)

247

................................................. 247

Shipping Weight (lbs.)

275

................................................. 275

1NOTE: For 460V operation, magnetic switch (part no. 31A-MSA-2) must be purchased separately and installed. A qualified electrician is recommended.

2Subject to local and national electrical codes.

The above specifications were current at the time this manual was published, but because of our policy of continuous improvement, Powermatic reserves the right to change specifications at any time and without prior notice, without incurring obligations.

Read and understand the entire contents of this manual before attempting set-up or operation! Failure to comply may cause serious injury.

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Powermatic 31A operating instructions Introduction Specifications, Subject to local and national electrical codes
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31A specifications

The Powermatic 31A is a high-performance 12" planer that has become a favorite among woodworkers and craft enthusiasts alike. Renowned for its powerful features and robust design, the 31A stands out in the woodworking community for its ability to deliver precision and efficiency in planing wood.

One of the key features of the Powermatic 31A is its 3 HP motor, which provides ample power for handling a wide range of hardwoods and softwoods. The motor is designed to run smoothly and quietly, reducing vibration during operation, which is essential for achieving fine finishes. The combination of power and stability allows users to tackle even the most challenging jobs with ease.

The machine is equipped with a 12" wide cutter head that utilizes four high-speed steel knives, which are known for their superior cutting capabilities. This allows for a smooth, even finish and reduces the amount of sanding required afterward. The adjustable infeed and outfeed tables are another notable feature, providing support for long workpieces and ensuring accuracy throughout the planing process.

In addition to its mechanical prowess, the Powermatic 31A boasts a quick elevation mechanism that allows users to make rapid adjustments to the height of the cutter head. This feature enhances efficiency and allows for easy transitions between different thicknesses of wood. The inclusion of a hinged cover also allows for quick access to the cutter head for maintenance and knife replacement, minimizing downtime.

The built-in dust collection system is another notable characteristic of the Powermatic 31A. This system helps to keep the workspace clean and safe by efficiently removing sawdust and debris, thereby ensuring that the work environment remains tidy and reducing the risk of respiratory issues caused by wood dust.

Moreover, the heavy-duty cast iron construction of the Powermatic 31A enhances its stability during operation, contributing to a better cutting experience. The robust design also ensures longevity, making it a reliable choice for both professional woodworkers and hobbyists.

With precision engineering and advanced technologies, the Powermatic 31A melds power and functionality, making it an indispensable tool for anyone serious about woodworking. Whether you are milling lumber for furniture-making or crafting intricate wood designs, this planer delivers in performance, making it a top-tier choice in its class.
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