Positive, overload protected feed mechanism. A carefully engineered feed mechanism offers speeds from 20 to 100 lineal feet per minute with built-in overload protection. A positive gear drive shaft to precent damage to the drive system. A convenient feed speed adjustment and indicator are procided to simplify machine operation. This type of drive virtually eliminates feed works related dubbing problems. The feed is also reversible by means of a drum switch, allowing the operator to back out stock once it has been fed into the machine.

The feed mechanism is drive by a 2 HP totally enclosed fan-cooled motor. This machine is available in either a direct motor or vee-belt drive with 5, 7-1/2, 10, 15, 20, and 25 HP TEFC motors. Direct motor drives and vee-belt drives operate at 3600 RPM or to customer's drive. A 2 or 3 HP motor is also available.

These machines are designed to plane material 25" wide and from 1/16" to 8-3/4" in thickness. The cutterhead design allows a maximum cut of 1/2". Butted pieces as short as 4" and single pieces 12" may be planed.

The heavy one-piece table accurately carries all table parts for precision planing and is easily adjustable by a conveniently located hand wheel.

A large box-type three point mounted base of rigid design insures proper support of all components.

Each Northfield machine is carefully tested with modern vibration-analyzing equipment. Even conditions hidden from view which might interfere with the smooth, long life of the machine are detected and corrected.

An independent gear motor with overload clutch is available as an option providing powered table elevation. A micro switch is also provided to prevent elecating the table into the cutterhead.

The four knife cutterhead of high carbon steel is 25" long and has a 5" cutting circle. The 5/32" x 1-1/4" x 25" knives are of high speed steel and can be quickly adjusted with the micrometer type knife raising screws and machined integral with the cuterhead. The cutterhead can be quickly stopped with a convenient brake.

Specifications:
Normal size: 25" x 8" Straight Knife
24" x 8" Helical Knife
Actual Capacity: 25" x 8-3/4" Straight Knife
24" x 8-5/8" Helical Head
Cylinder: 5" cutting circle, 4 knife, high carbon steel, micrometer-type knife, raising screws
Knife size: 5/32" x 1-1/4" x 25", high speed steel
Drive: Direct Motor or Vee-Belt
Brake: Conveniently located hand brake
Motors:
-Cutterhead: 5, 7-1/2, 10, 15, 20, or 25 HP totally enclosed, fan cooled
-Feed:1-1/2 HP totally enclosed, fan cooled
Voltage: 208-220/440, 550 volt, 60 cycle, 3 phase standard
RPM:
-Direct Motor Drive: 3600
-Vee-belt: 3600(or to customer's specifications)
Lower Feed rolls: 4" solid steel, power driven, sealed-for-life bearings
Upper Feed rolls:
-Infeed: 4" diameter, 2" milled ductile iron sections, 5/16" section yield, 3/4" roll yield, sealed-for-life ball bearings
-Outfeed: 4" solid steel, power driven, sealed-for-life ball bearings
Table Feed Roller Adjustment: Single hand lever, .001" to .075"
Feed Speed: 20 to 100 lineal feet per minute
Chipbreaker: Ductile iron, 2" sections, concentric with head
Pressure Bar: easily adjustable with micrometer type screws
Maximum Stock Width: 25" Straight Knife
24" Helical Head
Shortest Butted Piece: 4"
Shortest Single Piece: 12"
Maximum stock thickness: 8-3/4"
Minimum stock thickness: 1/16"
Maximum depth of cut: 1/2"
Controls: double magnetic switch, single pushbutton, reversing switch on feed mechanism
Floor Space: 60" x 50"
Base: large box-type, three point mounted
Net Weight: 3000lbs.*
Domestic Shipping Weight: 3100 lbs.*
Export Shipping Weight: 3400 lbs.*
Cubic Export Crate Size: 137 cu. ft.

*Add 150lbs. if knife grinder is ordered with machine. Knife grinder must be ordered with Helical Cutterhead option. 7-1/2 HP minimum for Helical Head option. Machine requires approximately 1400 CFM airflow for dust collection.