Technical data
27
Torches
Machine Torches
Two-Hose Models
SC770 Series - Medium Pressure
Industrial duty 2-Hose Machine Torch cuts to 12” (305mm) with 
medium pressure acetylene, LP or natural gas.
Three-Hose Model
SC780A Series - Medium Pressure
High capacity 3-hose machine torch cuts up to 24” (610mm) 
with acetylene and up to 20” (508mm) with medium pressure LP 
or natural gas.
Machine Cutting Torches
Smith’s heavy duty machine torches provide supe-
rior performance. Ease-on cutting lever reduces
blow back in piercing and key-holing in re-starts
extending tip life and provides high quality cuts.
Torch barrels easily adjust to 4 positions at 90°
increments. Barrel diameters are 1-3/8” (9.5mm)
to fit most machines. Stainless steel ball type
valves provide fine adjustment and positive shut-
off. Smith machine torches are covered by our
"LIFETIME" WARRANTY, the longest and strongest
in the industry.
SC770
SC772A
Torches Equipped With:
Standard Barrel Size Rack 
Pitch 32, 10 Teeth Per Inch
SC781A
Stock No.  Overall SEE PAGES 32 - 36 FOR CUTTING TIPS
Stock No. (32 Pitch Rack Only)
Torch Length*
SC770 4769-1 Rack 8” Oxygen/Acetylene: SC12 Series,
(203mm) SC56 Series,Oxygen/Propane
Oxygen/Natural Gas:
SC40 Series, SC46 Series, 
SC772A 15599* 13-3/4” SC21A Series, SC50 Series
(349mm) Oxygen/Propylene:
SC60 Series 
Rack Pitch 32 - 10 Teeth Per Inch
100% TESTED AND INSPECTED
Stock No.  Overall SEE PAGES 32 - 36 FOR CUTTING TIPS
Stock No. (32 Pitch Rack Only)
Torch Length*
SC781A SC781-1* 15-1/2” Oxygen/Acetylene: SC12 Series, SC56 Series
(394mm) Oxygen/Propane Oxygen/Natural Gas:
SC40 Series, SC46 Series, 
SC21A Series, SC50 Series
Oxygen/Propylene: SC60 Series
Rack Pitch 32 - 10 Teeth Per Inch
NOTE: Overall length is measured from rear of hose connections to front of tip nut.
* Includes mounting screws.
4770 (2)
Mounting Screws










