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ACR® 4 Hot Bonder
$0.00
SKU:ACR4 Hot Bonder - RFQ
The ACR® 4 delivers enhanced performance and features for debulking and curing resins, prepregs, adhesives, and other composite materials with ease.
Designed to control both heat and vacuum, the ACR® 4 is engineered for operating in environments ranging from a materials test lab to an aircraft hanger and everywhere in between. Its compact design makes it perfect for onsite out-of-autoclave processing. The advanced HD touchscreen interface simplifies programming, while its dual vacuum systems, including built-in electric pump and venturis, offer unparalleled control.
Note: The ACR® 4 can be purchased as a kit with or without composite curing blankets.
- Dual Zone Operation: built-in vacuum systems: electric vacuum pump, external vacuum connections, and venturi for each zone
- Interface: 10.1 inch HD touch screen with enhanced graphics for streamlined programming and easy-to-follow menu
- Thermocouple Management: Removable thermocouple boxes with 10 durable thermocouple sensors per zone
- Advanced Programming: Recipe customization: no step limit with more recipe storage
Quality Guaranteed
Since 1949
Since 1949
- Precision Monitoring: Removable thermocouple boxes with 10 durable thermocouple sensors per zone
- Built-in blanket resistance testing
- 10.1" HD touch screen for better visibility and graphics
- Dual Zone Operation: Ability to run the same or different cures on both zones simultaneously
- Dual Voltage: Works on 100-130, 200-240 VAC
- High Amperage: 30 amps output per heat zone for faster heat-ups
- Ability to pause and edit cures including recipe and thermocouple usage
- Built-in Vacuum Systems: Electric vacuum pump and venturi for each zone
- Faster and Quieter On-Board Printer: Document your process without external devices
- Improved Mechanical Features: Better power connectors and angled connectors for easier access
- All-In-One: Includes all essential components for immediate use
- Recipe Customization: No step limit with more recipe storage
- Ability to review graphs, export cure data, and reprint receipts any time after a cure
- Advanced Security: Multiple levels of password protection for data integrity
- Unbeatable Durability: Impact-resistant, better quality latches, wheels, and handles with a removable lid
GENERAL
Display: 10.1 in (256 mm) full-color touchscreen
Temperature Control Range: Up to 1,400°F (760°C)
Temperature Display Units: °F or °C
Sensor Input: Type-J Thermocouples with standard connectors — 10 inputs per zone Accuracy: ±3°F (1.67°C)
Temperature Measurement Source: Choice of average of all selected thermocouples (TCs), high TC, low TC, or one selected TC
Dimensions (Closed): Hot Bonder: 23 x 18 x 12 in (584 x 457 x 305 mm)
Accessory Case: 20 x 16 x 10 in (508 x 406 x 254 mm)
Weight (Hot Bonder): 46 lbs (21 kg)
Alarms: Audible and visual alarms for temperature and vacuum deviation
Data Storage: Stores unlimited programs and last 60 cures on unit
Data Transfer: Through USB port
Data Logging: Logs digitally or through built-in printer: prints and records real-time
status of cure including program parameters. Ability to reprint historical cures
Data Logging Intervals: 1 to 99 minutes
Security: Multiple levels of password protection
POWER
Input Voltage: 100-130 VAC, 200-240 VAC
Maximum Amp Load per Zone: 30 amps
Maximum Output Rating: 240 VAC Single Phase
Frequency: 50-60 Hz
MAINS Supply Voltage Fluctuations: up to ±10% of the nominal voltage
Transient Over Voltages: Typically found on a Category II power source: i.e. a lighting circuit
Input Power Cord: 10 ft (3 m) long with choice of plug (1 per zone)
Heater Output Cord: 5 ft (1.5 m) long with receptacle compatible with BriskHeat Composite Curing Heating Blankets with ‘C’ plug. — Other heater output cords available upon request
VACUUM
Vacuum System: Built-in electric vacuum pump and vacuum venturis for each zone Pressure: up to 28 inHg (13.75 PSI)
Flow: 3.2 scfm (vacuum venturi); 0.26 scfm (electric vacuum pump)
Vacuum Units: Programmable to inHg, mmHg, kPa, or mbar
Vacuum Adjustment: Ability to manually adjust pressure for each zone
ENVIRONMENT
Location: Intended for use in dry environments. Do not expose to wet spray. Altitude: Up to 6,562 ft (2,000 m)
Storage Temperature Range: 1 to 140°F (-20 to 60°C)
Operating Temperature Range: 41 to 104°F (5 to 40°C)
Maximum Relative Humidity: 80% for temperatures up to 88°F (31°C) decreasing linearly to 50% relative to humidity at 104°F (40°C)
Pollution Degree: 2 — normally only non-conductive pollution occurs, however a temporary conductivity caused by condensation must be expected
The ACR® 4 Hot Bonder can be purchased either as a kit with composite curing blankets or as a basic kit without composite curing blankets.
Kit with Composite Curing Blankets
| PART NUMBER | NUMBER OF ZONES | VOLTAGE | NSN* |
| ACR-4-DB120KIT | 2 | 120 VAC | 4920-01-545-5200 |
| ACR-4-DB240KIT | 2 | 240 VAC | 4920-01-545-5200 |
Kit with Composite Curing Blankets include:
- ACR® 4 Hot Bonder Unit
- (2) - 10 ft (3 m) input power cords
- (2) - 5 ft (1.5 m) heater output power cords
- (20) - 6 ft (1.8 m) J-Type thermocouples
- (4) - 10 ft (3 m) vacuum hoses
- (4) - Vacuum bad feed-throughs
- (2) - Extra printer paper
- (2) - 10 in x 10 in (254 x 254 mm) SR composite curing blankets
- (2) - 12 in x 12 in (305 x 305 mm) SR composite curing blankets
- (2) - 16 in x 16 in (406 x 406 mm) SR composite curing blankets
Kit without Composite Curing Blankets
| PART NUMBER | NUMBER OF ZONES | VOLTAGE | Input Power Plug NEMA Rating |
| ACR-4-D120KIT | 2 | 120 VAC | L5-30P |
| ACR-4-D240KIT | 2 | 240 VAC | L6-30P |
Kit without Composite Curing Blankets include:
- ACR® 4 Hot Bonder Unit
- (2) - 10 ft (3 m) input power cords
- (2) - 5 ft (1.5 m) heater output power cords
- (20) - 6 ft (1.8 m) J-Type thermocouples
- (4) - 10 ft (3 m) vacuum hoses
- (4) - Vacuum bad feed-throughs
- (2) - Extra printer paper
Updates
-
ACR® 4 Hot Bonder Firmware Update (v1.7) Latest Update - June 2026
Catalog/Specifications Sheet
Instruction Manuals
Brochure & Line Cards
Q: What are composite curing heating products?
A:: Composite curing heating products are portable electric heating systems used to cure composite materials during manufacturing, repair, and maintenance. They provide controlled, uniform heat to ensure proper resin curing and consistent laminate properties.
Q: What are composite curing heating products used for?
A:: Composite curing heating products are commonly used for:
- Composite part manufacturing
- Bonded repairs
- Vacuum bag curing
- Resin curing
- Hot bonding
- Aerospace maintenance
- Wind turbine blade repair
- Marine composite repair
Q: What is a hot bonder?
A:: A hot bonder is a portable temperature control unit that manages one or more heating zones during composite curing. It monitors thermocouples and precisely controls heating blankets or heating tapes to follow programmed cure cycles.
Q: Why is temperature control important during composite curing?
A:: Proper temperature control helps:
- Ensure complete resin cure
- Achieve required material properties
- Prevent under-curing or overheating
- Improve bond strength
- Maintain process consistency
- Meet repair specifications
Q: Can one hot bonder control multiple heating blankets?
A:: Yes. Many hot bonders are available with multiple independent control zones, allowing several heating blankets or repair areas to be controlled simultaneously while maintaining separate temperature profiles.
Q: How do I choose the right composite curing system?
A:: When selecting a composite curing system, consider:
- Size of the repair area
- Required curing temperature
- Number of heating zones
- Blanket size
- Power requirements
- Temperature accuracy
- Programmable cure cycle capabilities
- Portability requirements
Q: What industries use composite curing heating products?
A:: Composite curing systems are widely used in:
- Aerospace
- Aviation maintenance (MRO)
- Wind energy
- Marine
- Automotive
- Military / Defense
- Composite fabrication
- Research and development
Q: Can composite curing hot bonder systems be used in the field?
A:: Yes. Many composite curing systems are designed to be portable, making them ideal for field repairs on aircraft, wind turbine blades, pipelines, marine vessels, and other large composite structures.
Q: What are heating blankets used for in composite repairs?
A:: Heating blankets provide uniform heat across the repair area, helping ensure the composite material cures evenly while minimizing temperature variations that could affect repair quality.
Q: What is the purpose of thermocouples during curing?
A:: Thermocouples measure the temperature at the repair site and provide feedback to the hot bonder or temperature controller, allowing the system to continuously adjust heater output throughout the cure cycle.
Q: Why is uniform heating important for composite repairs?
A:: Uniform heating helps ensure consistent resin curing, proper bond strength, reduced internal stresses, and improved repair quality while minimizing the risk of hot spots or incomplete curing.
Q: Are composite curing systems accurate?
A:: Yes. Modern hot bonders and temperature controllers provide precise temperature regulation, allowing operators to maintain cure cycles within tight tolerances required by many composite repair procedures.