NEXTFLEX: FLEXIBLE HEATERS
About
The Right Thermal Solution For You
Don't wait for a custom heater to get your project back on track. Nexthermal Nextflex offers a durable and flexible solution that ships the same day for most orders. These American-made heaters are easy to install thanks to their pre-marked centers and cold sections.
Applications
- Packaging
- Rubber Molding
- Top Seal Packaging
- Plastic Welding
- Plastic Injection Molding
- Plate Heating
- Specialty Heated Tools
- Food Processing Market
- Top Seal Packaging
- Medical Equipment
Form-in-Place Tubular Heater. Same-Day Shipping.
Optimized Durability
Nextflex is a custom flexible heater that features an inner layer of highly compressed copper powder, giving Nextflex increased durability while maintaining flexibility.
User Formable – Heavy-Duty Design
Nextflex’s robust design is engineered with a flexible solid casing that stays in the groove yet is easy to install.
Same Day Shipping
The Nextflex heater ships in simple-to-install straight lengths the same day for orders placed before 2PM Eastern Standard Time.
Marked at Center & Cold Sections
The Nextflex custom flexible heater is conveniently marked at both the center and the cold sections for visual verification during installation.
Technical Support
Nexthermal can assist you in selection, installation, advice, and improving application performance
Made in the USA
Nextflex heaters are manufactured in the United States in Battle Creek, Michigan.
SPECIFICATIONS
Available Diameters
Part Number
Length
Heated Length
Wattage
Availability
Voltage
65R-0300
300 mm
240 mm
350W
Build
230V
65R-0350
350 mm
290 mm
400W
Build
230V
65R-0400
400 mm
340 mm
500W
Stock
230V
65R-0450
450 mm
390 mm
600W
Stock
230V
65R-0500
500 mm
440 mm
650W
Stock
230V
65R-0550
550 mm
490 mm
700W
Stock
230V
65R-0600
600 mm
540 mm
800W
Stock
230V
65R-0650
650 mm
590 mm
850W
Stock
230V
65R-0700
700 mm
640 mm
900W
Stock
230V
65R-0750
750 mm
690 mm
1000W
Stock
230V
65R-0800
800 mm
740 mm
1100W
Stock
230V
65R-0850
850 mm
790 mm
1200W
Build
230V
65R-0900
900 mm
840 mm
1300W
Build
230V
65R-0950
950 mm
890 mm
1350W
Build
230V
65R-1000
1000 mm
940 mm
1400W
Build
230V
65R-1050
1050 mm
990 mm
1450W
Build
230V
65R-1100
1100 mm
1040 mm
1500W
Build
230V
65R-1150
1150 mm
1090 mm
1550W
Build
230V
65R-1200
1200 mm
1140 mm
1600W
Build
230V
65R-1250
1250 mm
1190 mm
1650W
Build
230V
65R-1300
1300 mm
1240 mm
1700W
Build
230V
65R-1350
1350 mm
1290 mm
1800W
Build
230V
65R-1400
1400 mm
1340 mm
1900W
Build
230V
65R-1450
1450 mm
1390 mm
2000W
Build
230V
65R-1500
1500 mm
1440 mm
2100W
Build
230V
Part Number
Length
Heated Length
Wattage
Availability
Voltage
80R-0300
300 mm
240 mm
560W
Stock
240V
80R-0350
350 mm
290 mm
675W
Stock
240V
80R-0400
400 mm
340 mm
795W
Stock
240V
80R-0425
425 mm
365 mm
850W
Stock
240V
80R-0450
450 mm
390 mm
910W
Stock
240V
80R-0475
475 mm
415 mm
970W
Stock
240V
80R-0500
500 mm
240 mm
1025W
Stock
240V
80R-0525
525 mm
465 mm
1090W
Stock
240V
80R-0550
550 mm
490 mm
1145W
Stock
240V
80R-0575
575 mm
515 mm
1200W
Stock
240V
80R-0600
600 mm
540 mm
1260W
Stock
240V
80R-0625
625 mm
565 mm
1320W
Stock
240V
80R-0650
650 mm
590 mm
1380W
Stock
240V
80R-0675
675 mm
615 mm
1440W
Stock
240V
80R-0700
700 mm
640 mm
1495W
Stock
240V
80R-0725
725 mm
665 mm
1550W
Stock
240V
80R-0750
750 mm
690 mm
1615W
Stock
240V
80R-0775
775 mm
715 mm
1670W
Stock
240V
80R-0800
800 mm
740 mm
1730W
Stock
240V
80R-0850
850 mm
790 mm
1845W
Stock
240V
80R-0900
900 mm
840 mm
1960W
Stock
240V
80R-0950
950 mm
890 mm
2080W
Stock
240V
80R-1000
1000 mm
940 mm
2195W
Stock
240V
80R-1050
1050 mm
990 mm
2315W
Stock
240V
80R-1100
1100 mm
1040 mm
2430W
Stock
240V
80R-1150
1150 mm
1090 mm
2545W
Stock
240V
80R-1200
1200 mm
1140 mm
2665W
Stock
240V
80R-1250
1250 mm
1190 mm
2780W
Stock
240V
80R-1300
1300 mm
1240 mm
2895W
Stock
240V
80R-1350
1350 mm
1290 mm
3015W
Stock
240V
80R-1400
1400 mm
1340 mm
3130W
Stock
240V
80R-1450
1450 mm
1390 mm
3245W
Stock
240V
80R-1500
1500 mm
1240 mm
3365W
Stock
240V
80R-1550
1550 mm
1490 mm
3480W
Stock
240V
80R-1600
1600 mm
1540 mm
3600W
Stock
240V
80R-1650
1650 mm
1590 mm
3600W
Stock
240V
80R-1700
1700 mm
1640 mm
3600W
Stock
240V
80R-1750
1750 mm
1690 mm
3600W
Stock
240V
80R-1800
1800 mm
1740 mm
3600W
Stock
240V
80R-1850
1850 mm
1790 mm
3600W
Stock
240V
80R-1900
1900 mm
1840 mm
3600W
Stock
240V
80R-1950
1950 mm
1890 mm
3600W
Stock
240V
80R-2000
2000 mm
1940 mm
3600W
Stock
240V
80R-2050
2050 mm
1990 mm
3600W
Stock
240V
80R-2100
2100 mm
2040 mm
3600W
Stock
240V
Part Number
Length
Heated Length
Wattage
Availability
Voltage
85R-0300
300 mm
240 mm
650W
Build
230V
85R-0350
350 mm
290 mm
750W
Build
230V
85R-0400
400 mm
340 mm
795W
Build
230V
85R-0425
425 mm
365 mm
975W
Build
230V
85R-0450
450 mm
390 mm
1050W
Build
230V
85R-0475
475 mm
415 mm
1100W
Build
230V
85R-0500
500 mm
240 mm
1150W
Stock
230V
85R-0525
525 mm
465 mm
1225W
Stock
230V
85R-0550
550 mm
490 mm
1300W
Stock
230V
85R-0575
575 mm
515 mm
1375W
Stock
230V
85R-0600
600 mm
540 mm
1450W
Stock
230V
85R-0625
625 mm
565 mm
1525W
Stock
230V
85R-0650
650 mm
590 mm
1600W
Stock
230V
85R-0675
675 mm
615 mm
1675W
Build
230V
85R-0700
700 mm
640 mm
1750W
Stock
230V
85R-0725
725 mm
665 mm
1825W
Build
230V
85R-0750
750 mm
690 mm
1900W
Stock
230V
85R-0775
775 mm
715 mm
1975W
Build
230V
85R-0800
800 mm
740 mm
2050W
Stock
230V
85R-0850
850 mm
790 mm
2200W
Stock
230V
85R-0900
900 mm
840 mm
2350W
Stock
230V
85R-0950
950 mm
890 mm
2500W
Stock
230V
85R-1000
1000 mm
940 mm
2650W
Stock
230V
85R-1050
1050 mm
990 mm
2800W
Stock
230V
85R-1100
1100 mm
1040 mm
2930W
Stock
230V
85R-1150
1150 mm
1090 mm
3060W
Stock
230V
85R-1200
1200 mm
1140 mm
3190W
Stock
230V
85R-1250
1250 mm
1190 mm
3320W
Stock
230V
85R-1300
1300 mm
1240 mm
3450W
Stock
230V
85R-1350
1350 mm
1290 mm
3580W
Stock
230V
85R-1400
1400 mm
1340 mm
3600W
Stock
230V
85R-1450
1450 mm
1390 mm
3600W
Stock
230V
85R-1500
1500 mm
1240 mm
3600W
Stock
230V
Part Number
Length
Heated Length
Wattage
Availability
Voltage
60SQ-0300
300 mm
240 mm
350W
Build
230V
60SQ-0350
350 mm
290 mm
400W
Build
230V
60SQ-0400
400 mm
340 mm
500W
Stock
230V
60SQ-0450
450 mm
390 mm
600W
Stock
230V
60SQ-0500
500 mm
440 mm
650W
Stock
230V
60SQ-0550
550 mm
490 mm
700W
Stock
230V
60SQ-0600
600 mm
540 mm
800W
Stock
230V
60SQ-0650
650 mm
590 mm
850W
Stock
230V
60SQ-0700
700 mm
640 mm
900W
Stock
230V
60SQ-0750
750 mm
690 mm
1000W
Stock
230V
60SQ-0800
800 mm
740 mm
1100W
Stock
230V
60SQ-0850
850 mm
790 mm
1200W
Build
230V
60SQ-0900
900 mm
840 mm
1300W
Build
230V
60SQ-0950
950 mm
890 mm
1350W
Build
230V
60SQ-1000
1000 mm
940 mm
1400W
Build
230V
60SQ-1050
1050 mm
990 mm
1450W
Build
230V
60SQ-1100
1100 mm
1040 mm
1500W
Build
230V
60SQ-1150
1150 mm
1090 mm
1550W
Build
230V
60SQ-1200
1200 mm
1140 mm
1600W
Build
230V
60SQ-1250
1250 mm
1190 mm
1650W
Build
230V
60SQ-1300
1300 mm
1240 mm
1700W
Build
230V
60SQ-1350
1350 mm
1290 mm
1800W
Build
230V
60SQ-1400
1400 mm
1340 mm
1900W
Build
230V
60SQ-1450
1450 mm
1390 mm
2000W
Build
230V
60SQ-1500
1500 mm
1440 mm
2100W
Build
230V
Part Number
Length
Heated Length
Wattage
Availability
Voltage
80SQ-0300
300 mm
240 mm
650W
Build
230V
80SQ-0350
350 mm
290 mm
750W
Build
230V
80SQ-0400
400 mm
340 mm
795W
Build
230V
80SQ-0425
425 mm
365 mm
975W
Build
230V
80SQ-0450
450 mm
390 mm
1050W
Build
230V
80SQ-0475
475 mm
415 mm
1100W
Build
230V
80SQ-0500
500 mm
240 mm
1150W
Stock
230V
80SQ-0525
525 mm
465 mm
1225W
Stock
230V
80SQ-0550
550 mm
490 mm
1300W
Stock
230V
80SQ-0575
575 mm
515 mm
1375W
Stock
230V
80SQ-0600
600 mm
540 mm
1450W
Stock
230V
80SQ-0625
625 mm
565 mm
1525W
Stock
230V
80SQ-0650
650 mm
590 mm
1600W
Stock
230V
80SQ-0675
675 mm
615 mm
1675W
Build
230V
80SQ-0700
700 mm
640 mm
1750W
Stock
230V
80SQ-0725
725 mm
665 mm
1825W
Build
230V
80SQ-0750
750 mm
690 mm
1900W
Stock
230V
80SQ-0775
775 mm
715 mm
1975W
Build
230V
80SQ-0800
800 mm
740 mm
2050W
Stock
230V
80SQ-0850
850 mm
790 mm
2200W
Stock
230V
80SQ-0900
900 mm
840 mm
2350W
Stock
230V
80SQ-0950
950 mm
890 mm
2500W
Stock
230V
80SQ-1000
1000 mm
940 mm
2650W
Stock
230V
80SQ-1050
1050 mm
990 mm
2800W
Stock
230V
80SQ-1100
1100 mm
1040 mm
2930W
Stock
230V
80SQ-1150
1150 mm
1090 mm
3060W
Stock
230V
80SQ-1200
1200 mm
1140 mm
3190W
Stock
230V
80SQ-1250
1250 mm
1190 mm
3320W
Stock
230V
80SQ-1300
1300 mm
1240 mm
3450W
Stock
230V
80SQ-1350
1350 mm
1290 mm
3580W
Stock
230V
80SQ-1400
1400 mm
1340 mm
3600W
Stock
230V
80SQ-1450
1450 mm
1390 mm
3600W
Stock
230V
80SQ-1500
1500 mm
1240 mm
3600W
Stock
230V
Nextflex Connectors
Installation
Step
01
Starting at the center of the groove, bend the Nextflex custom flexible heater at the center mark consistent with the direction of the groove.
Step
02
Form and install in short lengths to prevent re-bending. Always start by installing the heater at the center mark at the center location of the groove.
Step
03
It is important to make sure the Nextflex custom flexible heater is directly above the groove prior to striking. Form and install in 1-to-2-inch sections (25 to 50 mm).
Step
04
While keeping the Nextflex heater flat and forming it with your free hand, bend the heater to match the groove.
Step
05
One strong strike is more effective than two soft strikes. If your groove dimensions are correct, you will not damage the internal heater.
Step
06
For optimal heat transfer and heater longevity, use the Nextflex staking tool to firmly secure the heater every 3/4 inch (≈ 20 mm).
Step
01
Starting at the center of the groove, bend the Nextflex custom flexible heater at the center mark consistent with the direction of the groove.
Step
02
Form and install in short lengths to prevent re-bending. Always start by installing the heater at the center mark at the center location of the groove.
Step
03
It is important to make sure the Nextflex custom flexible heater is directly above the groove prior to striking. Form and install in 1-to-2-inch sections (25 to 50 mm).
Step
04
While keeping the Nextflex heater flat and forming it with your free hand, bend the heater to match the groove.
Step
04
While keeping the Nextflex heater flat and forming it with your free hand, bend the heater to match the groove.
Step
05
One strong strike is more effective than two soft strikes. If your groove dimensions are correct, you will not damage the internal heater.
Step
06
For optimal heat transfer and heater longevity, use the Nextflex staking tool to firmly secure the heater every 3/4 inch
(≈ 20 mm).
nextflex lead adapter Kit
The Nextflex lead adapter kit is an add-on for Ø8.0/Ø8.5 heaters that lets you safely connect a 1,000 mm (40") lead wire. It's reusable for servicing and provides a high-temperature connection for safety. Each kit fits one heater, with longer wires available upon request.
See data sheet for more details
- Remove both nuts and washers from the end of the heater.
- Align the metal crimp on the power lead with the threaded stud and rotate to assemble. Do not screw on fully - leave about 2-3 mm of threads exposed on the heater pin.
- While holding the lead wire, slide the ceramic sleeve up to cover the metal crimp, then rotate to engage the internal threads.
- Turn until the ceramic sleeve seats against the end of the Nextflex custom flexible heater, and finger tighten to hold.
This will act as a jam nut and bind the metal crimp against the threads of the stud reducing the risk of it loosening up over time. Do not overtighten the ceramic sleeve, only a slight binding is needed to secure.
This will act as a jam nut and bind the metal crimp against the threads of the stud reducing the risk of it loosening up over time. Do not overtighten the ceramic sleeve, only a slight binding is needed to secure.
Technical Specifications
Minimum Bending Radius (Inside)
Maximum Temperature
High Voltage Stability
Insulation Resistance
Leakage Current
Wattage Tolerance
Max Voltage
Diameter Tolerance
Length Tolerance
⌀ 8.0 / ⌀ 8.5 mm = R10 mm, ⌀ 6.5 mm = R6.5 mm
700 °F / 371 °C
1000 VAC
≥ 5 M @ 500 VDC
≤ 0.5 mA @ 253 VAC
± 10%
250 VAC
Nominal ⌀ ± 0.10 mm
± 1.5%
