LiftMaster Commercial Door Operator - Maxum DC Jackshaft - JDC
Meet the next generation of commercial door automation with the Maxum DC Jackshaft Operator. Engineered for modern facilities, its space-saving, side-mount design is the perfect solution for applications with low-headroom clearances or high-lift track systems. At its core, the powerful and whisper-quiet DC motor provides smooth, variable-speed operation, significantly reducing noise and wear on your door components. Built for durability in high-cycle environments, the Maxum ensures unwavering reliability day in and day out. With advanced features like soft-start and soft-stop, plus the security of an optional battery backup, this operator delivers the efficiency and peace of mind your business requires. Elevate your operations with the unmatched performance of the Maxum DC Jackshaft.
Liftmaster MAXUM DC Jackshaft Commercial Door Operator
JDC
- Motor and Gearbox purpose built to meet the high demands of commercial applications.
- 3-button control with 4-line LCD display for setup and programming from the floor level.
- Up to 33% faster than standard commercial door operators, allowing you to get shipments in and out quickly. Average speed is 12” per second.
- Battery Backup helps keep your door running even when the power goes out—ensuring safe and continuous operation.
- Diagnostics at floor level through myQ® Facility on your mobile device allows you to see when there is a problem and anticipate maintenance cycles.
- Built-in Wi-Fi® lets you easily connect to myQ Facility software, allowing you to get valuable data and insights to improve operations.
- Security+ 2.0® virtually eliminates radio wave interference and offers extended range.
See all the specs and more at the Manufacturer’s Website:
Liftmaster MAXUM DC Jackshaft Commercial Door Operator
LiftMaster CHAINGUARD3IN, CHNGUARD Instruction Sheet
LiftMaster JDC, RJDC, JHDC, TDC Installation Manual
LiftMaster MAXUM Commercial Door Operator Overview
2025 LiftMaster Commercial Door Operator Comparison
Fast
At an average speed of 12” per second, the operator quickly opens doors to help your business stay efficient and profitable. Plus, the floor LCD display allows you to easily track your maintenance schedule—reducing downtime.
Smart
Soft-start & Soft-stop gives the operator a longer lifespan while Battery Backup ensures that it will keep running—even in a power outage. With embedded Wi-Fi connectivity out the of box, you can use myQ Facility software to access data and analytics to improve your business.
Simple
Floor-level wall control makes the operator easier to control and check for preventative maintenance. The modular design enables both right and left-side mounting with a single unit—making the operator flexible to the needs of your application.
Diagnostics
With myQ Diagnostics you can know your maintenance schedule and be alerted when there is a problem to reduce time on tools and increase safety.
Specifications
| Soft Start / Stop | Yes | myQ Compatibility | Works with myQ, myQ Facility, or myQ Enterprise |
| Wi-Fi | Yes | Battery Backup | Yes, with included DC45AH Battery Backup kit |
| Duty Cycle Per Hour p/h & Per Day p/d | Standard – 20 cycles p/h /90 p/d | Extended – 30 cycles p/h /150 p/d | Speed/Per Second | Faster speed, 12” on average for sectional and 8–9 inches for rolling steel doors |
| Motor Type | 24VDC Motor Drive | Dual handing for installs | Right or left no longer required for order |
| Power | 120V/240V (1PH/3PH); 480V (3PH); 208V & 600V (3PH) available with transformer accessory | Monitored Safety Inputs | 3 Inputs |
| Radio Receiver | Security + 2.0 | Warranty | Standard Duty – 2 to 5 Years, or 85,000 Cycle Extended Duty – 2 to 5 Years, or 130,000 Cycles |




