Technical Sales 1–800–458–3687

National Sheet Metal Power Roll Forming

power roll

Lifetime Warranty

Nationals 3 and 4 inch power rolls are designed for simple operation. Standard with forward and reverse drum switch. Quick release upper roll. Positive chain drive. Heavy duty gear box. Front guard for additional safety. Heavy duty stand is standard.

Nationals rolls incorporate three precision turned, ground, and polished high carbon steel rolls. Extra heavy duty end frames with quick release handle on the right front for speedy production forming.

The drive train is powered with a heavy duty precision reduction gear box to assure durability and long life. The electric panel and gear box are housed in a ventilated stand for protection.

Precision roll adjustment is achieved by turning the hand wheel on the left end of the roll. Repeatability is maintained by the forming scale above the hand wheel.

Specifications
Model NR-4816 NR-7216
Capacity
(Tensile Stregnth 55,000 lbs. at rated capacity)
16 Gauge: 1.6mm 16 Gauge: 1.6mm
Maximum Forming Length 48-1/4in/1226mm 72-1/4in/1835mm
Diameter of Roll 3 in / 76 mm 4 in / 102 mm
Minimum Forming Radius 1-1/2in/38mm 2in/51mm
Wire Grooves (Optional) 3/8, 1/2, 5/8 in
/10mm, 13mm, 16mm
3/8, 1/2, 5/8 in
/10mm, 13mm, 16mm
Roll Speed 18 rpm/14.13 sfpm 18 rpm/14.13 sfpm
Motor: 110-220 Single PH
208-220-440 3 PH
1 hp 1 hp
Floor Space (l x w x h) 64 x 37 x 44-1/2 in
1626 x 940 x 1130mm
88 x 26 x 43-3/4 in
2335 x 660 x 1111mm
Shipping Weight 970 lbs/440 kgs 1740 lbs/814 kgs

Lifetime Warranty On Breakage (Rolls)
3 Year Warranty On All Other Parts


 

NR-MISC   -   Optional wire groove 3/8in,  1/2in, 5/8in Call to specify when ordering

NR-4816
4FT 16 GAUGE POWER ROLLS STANDARD WITH 3IN ROLLS, 1HP MOTOR, HEAVY DUTY STAND.** MADE IN THE USA / SHIPPING WT. 938 LBS
Mfg. item #: NR-4816
NTLNR-4816
lease to own for as little as:$161 per month!
Call for freight quote on this item or we will confirm freight charges before shipping.1
$8,061.63

469
NR-7216
6FT 16 GAUGE POWER ROLLS, STANDARD WITH 4IN ROLLS, 1 HP MOTOR, HEAVY DUTY STAND WITH ** MADE IN THE USA / SHIPPING WT. 1843 LBS
Mfg. item #: NR-7216
NTLNR-7216
lease to own for as little as:$196 per month!
Call for freight quote on this item or we will confirm freight charges before shipping.1
$9,798.87

469
NR-MISC
WIRE GROOVE OPTION 3/8, 1/2, 5/8 (SPECIFY WHEN ORDERING)
Mfg. item #: NR-MISC
NTLNR-MISC
FREE shipping ONLY when ordered with a machine from this manufacturer otherwise Ground UPS Will Be Added at Order Entry.20
$814.66

469
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