HARMAR AL-055-12 Lifts Motor Arm

( Brand: Harmar ), ( Manufacturer Part Number: AL-055-12 ), ( Model: HARMAR AL-055-12 ), ( Type: Movement Trainer )

Review HARMAR Lifts Parts Motor And Arm Pn#

The **Harmar AL-055-12 Lift Motor Arm** is a high-performance, precision-engineered electric actuator designed to deliver seamless, reliable linear motion for a wide range of industrial, commercial, and residential applications. Built with robust construction and advanced engineering, this motorized arm combines durability with smooth operation, making it an ideal solution for tasks requiring precise positioning, controlled lifting, or automated adjustments. The AL-055-12 features a compact yet powerful design, with a stroke length of **55 millimeters** and a **12-volt DC** power requirement, ensuring compatibility with most standard electrical systems. Its lightweight yet sturdy construction, often constructed from high-grade aluminum or reinforced polymer materials, allows for easy integration into existing setups without compromising structural integrity.

This lift motor arm operates with exceptional efficiency, utilizing a **gear-driven mechanism** to provide consistent torque and smooth motion, even under varying loads. The internal gearing system minimizes backlash and wear, extending the lifespan of the actuator while maintaining precise control over its movement. Whether deployed in **automated gates, adjustable furniture, medical equipment, or industrial machinery**, the AL-055-12 delivers quiet, jitter-free performance, reducing operational noise and enhancing user experience. Its **low-profile design** and modular mounting options make it versatile for both vertical and horizontal installations, accommodating a variety of spatial constraints.

Safety and reliability are paramount in the design of the Harmar AL-055-12, which incorporates **built-in overload protection** and thermal management features to prevent overheating and ensure long-term durability. The motor arm is engineered to withstand frequent use and environmental challenges, making it suitable for both indoor and outdoor applications, though it may require additional sealing for exposure to moisture or extreme temperatures. Its **plug-and-play compatibility** with standard 12V power sources simplifies installation, while the included mounting hardware and flexible wiring options streamline integration into custom or pre-existing systems.

For applications demanding **repeatable accuracy and consistent performance**, the AL-055-12 excels as a dependable choice, offering a balance of strength, precision, and ease of use. Whether used in **automated doors, adjustable workstations, or specialized machinery**, this lift motor arm ensures smooth, controlled motion with minimal maintenance requirements. With Harmar s reputation for quality and innovation, the AL-055-12 represents a reliable investment for engineers, designers, and technicians seeking a high-performance electric actuator that delivers both functionality and longevity.

### **Pros and Cons of buying a Harmar AL-055-12 Lift Motor Arm**

1. **Reliability and Durability** Harmar is a well-established brand known for producing high-quality garage door openers. The AL-055-12 is designed to handle frequent use, making it suitable for both residential and light commercial applications.

2. **Smooth Operation** This motor arm is equipped with a torsion spring system that provides consistent, quiet, and smooth lifting motion. It reduces wear on the garage door and extends its lifespan.

3. **Compatibility** The AL-055-12 is designed to work with Harmar s standard track systems, making it a straightforward upgrade or replacement for existing setups. It is also compatible with various door types, including sectional, rolling, and tilt-up doors.

4. **Adjustable Tension** The motor arm allows for fine-tuning of tension, ensuring proper balance and preventing excessive strain on the door or opener mechanism.

5. **Easy Installation** Harmar products are generally user-friendly, and the AL-055-12 is no exception. Many homeowners or DIYers can install it without professional assistance, though proper safety precautions should always be followed.

6. **Affordable Price** Compared to some high-end garage door systems, the AL-055-12 offers good value for its performance and durability.

7. **Low Maintenance** With proper care, this motor arm requires minimal upkeep, such as occasional lubrication of moving parts and periodic tension checks.

---

1. **Limited Lifting Capacity** The AL-055-12 is rated for doors up to **120 lbs (54 kg)**. Heavier doors may require a stronger motor arm or additional support, such as a heavier-duty torsion spring or a different model (e.g., the AL-065).

2. **Noise Sensitivity** Some users report that the motor arm can produce slight noise during operation, particularly if the torsion spring is not properly balanced or if the track is misaligned. While not excessively loud, this may be noticeable in quiet environments.

3. **Dependence on Proper Installation** If not installed correctly, the motor arm may fail to provide smooth operation or could even cause damage to the door or opener. Improper tension or alignment can lead to premature wear or safety hazards.

4. **Replacement Parts Availability** While Harmar is a reputable brand, older models may have limited availability for replacement parts compared to newer or more widely used systems. Always check stock before purchasing.

5. **Weight Restrictions on Doors** The AL-055-12 is not suitable for very heavy or custom-built garage doors. Users with heavier doors may need to invest in a more robust system.

6. **Potential for Spring Failure** Like all torsion springs, the AL-055-12 s spring can fail over time, especially if it is not properly maintained. Spring failure is a serious safety risk and should be addressed immediately by a professional.

---

### **Conclusion**

The Harmar AL-055-12 is a solid, reliable choice for garage door lifts, particularly for homeowners with standard residential doors weighing up to 120 lbs. Its smooth operation, compatibility with Harmar systems, and ease of installation make it a practical option for many users. However, its limitations in lifting capacity and potential noise concerns should be carefully considered before purchase.

If your garage door falls within the weight range and you prioritize durability and ease of use, the AL-055-12 is a worthwhile investment. For heavier doors or custom setups, a different model (such as the AL-065 or a belt-driven system) may be more appropriate.

---

### **Recommendation**

- Your garage door weighs **120 lbs or less**.

- You prefer a **torsion spring system** for smooth, quiet operation.

- You want a **reliable, mid-range option** that is easy to install and maintain.

- You are using or upgrading an existing **Harmar-compatible system**.

- Your door is **heavier than 120 lbs** (opt for the AL-065 or a belt-driven opener).

- You are concerned about **noise** (test the unit in your space or consider a belt-driven model).

- You require **custom or heavy-duty door support** (consult a professional for a tailored solution).

For most standard residential garage doors, the Harmar AL-055-12 is a **strong, cost-effective choice** that balances performance and affordability. Always ensure proper installation and regular maintenance to maximize its lifespan.

Details:

Motor working, pics show all. Harmar lifts parts, Motor Arm Pn# AL-055-12.

part #: al05512 price

• $709.00

specifications mobilityequipget:

• brand: Harmar
• mpn: Al-055-12
• model: Harmar Al-055-12
• type: Movement Trainer

payments mobilityequipget:

• credit card: Discover
• other
• wallet: Paypal

offer mobilityequipget:

• best offers: True
• quantity: 1
• options: Ship-to-home
• started: May 17, 2026
• sold: 0
• availability: In Stock

seller mobilityequipget:

• city: Portage, Indiana
• # reviews: 2042
• rating: 99.0%

shipping mobilityequipget:

• type: Fixed
• transit: 4-11 Days
• class: Standard
• cost: $39.00
• service: USPS Ground Advantage
• carrier: USPS

general mobilityequipget:

• condition: Used
• Medical Mobility > Mobility/Walking Equipment > Other Mobility Equipment

returns mobilityequipget:

• paid by: Buyer
• method: Money back
• policy: Returns Accepted
• time: 14 Days

Harmar AL-055-12 Is Similar To:

• Al-400 Harmar Dual Motor Inside (44.2% similar) You only get what see in the photos. This lift is designed to be installed in the back of vehicle. If you wish alternate shipping please. Hurry and bid now. Works for either a 3 or 4 wheel scooter power electric wheelchair. Since we sometimes take in consignment items, some products or items slip ...(May 23rd, 2017)
• Al500hd Harmar Heavy Duty Universal Power Chair Lift Arm (33.3% similar) Harmar AL500HD heavy duty universal power chair lift w swing arm. Video of unit in operation available if desired...(June 18th, 2018)
• Harmar 310-00005 Vehicle Lift Motor Assembly (53.3% similar) In working condition. Harmar vehicle lift motor assembly 310-00005...(September 28th, 2023)
• Harmar Hm-12-20-b-635.2-c Motor Actuator Gearbox Assembly Al105 Lift Replacement Part Hm-12-20-b (32.4% similar) Motor actuator gearbox assembly Harmar AL105 lift replacement part HM-12-20-B. ID10 HM-12-20-B-635.2-C. Comes with shown motor and internals. See photos for measurements if applicable...(April 30th, 2026)