Aluminum or Bronze
Lower cooling capacity than water-cooled cast-in heater (ok for 90% of plastic extrusions)
Long service life
Dependable
Rugged construction
Uniform surface temperature
Recommended Wattage: Aluminum alloy– 30 WSI (max
800F/40 WSI)
Recommended Construction: Two-piece flange lockup
.315 tubular heating element
2 1/4” thick with fins
Screw terminals
Aluminum alloy
FIN Features
3/4” high, constructed into casting
Long-lasting
Not exposed to high heat
Will not crack or break
Tubular Band Heaters
Barrels of injection molding machines and extruders
Contaminated environments
Used in conjunction with air-cooled cylinders
Large blown-film dies
Installed over cooling tubes on OD of extruder barrel
Cylindrical-shaped machinery parts
Contamination resistant heating elements
Shaped, extruded aluminum shoe provides for even heat
Extruded aluminum shoe custom shaped to fit most cylinders
Aluminum shoe used to minimize effects of “uneven” cylinder
or holes and irregularities of surface being heated
Tight fit between aluminum shoe and cylinder being heated
due to low coefficient of expansion of stainless steel lockup strap
.315 OD U-shaped heating element
Screw terminals with ceramic terminal caps
Two-piece (halves) construction
Bolt and trunion lockup
Twenty-gauge lockup strap
Terminal cover box can be incorporated in strap
Recommended Wattage 30 WSI
Recommended Voltage
230 volts can be series connected on 440/ 460/ 480 volts
Aluminum or Bronze
Dependable
Rugged construction
Uniform surface temperature
Recommended Construction: Two piece will not flex
Recommended Wattage
Aluminum alloy– 25 WSI (max 800F/40
WSI)
Bronze alloy– (max 1200F/50
WSI)
.315 tubular heating elements
Screw terminals 10-32 (terminal cover boxes available)
Aluminum alloy casting
1/4” diameter bolts (flange)
General
Narrow areas (1 1/2” wide and less) where heat is required
Narrow areas where holes are required for bolts or holes in the cylinder being heated
Air-cooled cylinders
Areas exposed to contamination where a sealed heater and cable connection are required
Dies and front-end heat in many extrusion processes
Contamination-proof
Long service life
Holes in narrow heaters
Strap Lockup
Leads in Armor
.315 OD tubular heating element
DESIGN VARIATIONS
Construction
Holes through strap
Conductor cable length
With or without plugs
Screw terminals
Coil Heaters
Hot runner mold systems (injection molding)
Small diameter cylinders with high heat requirements
Areas with high potential for contamination
Areas where low profile, high heat heater is required
Coiled to fit many applications
Contamination-proof
Low profile
100 WSI
120 or 240 volts
Flex leads with Teflon sleeve
.118 (3mm) heating element
Aluminum or Bronze
Easy to control
Long service life
Rugged construction
Uniform surface temperature
Cooling Tube Features
Heavy wall– will not crack
Withstands thermal shock
Long-lasting
Accomodates most fittings
Resists deterioration from contaminants, chemicals and
solvents
Corrosion-resistant
Recommended Wattage
Aluminum alloy– 30 WSI (max 800F/40 WSI)
Bronze alloy– 40 WSI (max 1200F/50 WSI)
Flange or strap lockup
.315 tubular heating elements
Aluminum alloy casting
Recommended Construction
One- or two-piece, depending on application; will not
flex
Cooling Tube Construction
.50 (1/2”) Incoloy alloy sheath