Our Bi-Directional Lift Hinge
Sugatsune America’s bi-directional lift hinge (HG-TAWJ40) is engineered for lids and panels requiring full-range motion control, adjustable torque, and assisted lifting. Designed for innovative industrial equipment , this hinge combines torque resistance to hold a lid at any angle and spring assist to make the lid feel lighter when you are opening or closing it.
With a 0°–180° free-stop range, the hinge holds position at any point throughout the motion path, including beyond 90°. This enables controlled access, full opening clearance, and stable positioning without secondary supports.
Constructed with 304 stainless steel, the hinge is designed to function and last in some of the most demanding environments. This hinge supports lid features adjustability that can provide support for torque moments between 0 and 31 lbs-in.
Adjustable Torque with Integrated Spring Assist
The defining feature of the bi-directional 180 lift hinge is its field-adjustable torque, allowing engineers to match hinge resistance to specific lid weights and geometries.
Torque can be adjusted using a 3/8" (10 mm) socket or wrench, enabling:
- Fine-tuning for different lid weights and sizes
- Compensation for changes in panel materials or dimensions
- Standardization across multiple assemblies
The spring-assist mechanism offsets lid weight during opening, reducing operator effort while maintaining controlled motion. This allows higher torque settings to be used without increasing perceived opening force, improving both safety and usability.
180° Free Stop for Full Access and Positioning
Unlike standard hinges limited to partial motion, the bi-directional lift hinge provides continuous free stop from 0° to 180°.
This enables:
- Stable positioning at any angle
- Full access to internal components during service
- Improved ergonomics for operators and technicians
The hinge is particularly effective in applications where lids must remain open beyond vertical without external support.
Designed for Industrial Equipment and Architectural Integration
The bi-directional lift hinge (HG-TAWJ40) is suited for applications requiring both load support and controlled motion:
- Medical and automation equipment
- Equipment housings and machine covers
- Electrical and control enclosures
- Storage compartments and access lids
Its combination of adjustability, spring assistance, and full-range motion reduces the need for additional hardware such as gas struts or lid stays.
Performance Considerations for Lid Design
When specifying this hinge, both lid weight and height must be considered. Larger lids increase moment force, requiring lower weight limits or higher torque settings.
- Recommended torque t range: 0–30 lbs-in.
- Taller lids may require reduced weight to maintain stability
- Torque should be calibrated during installation for optimal performance
For detailed sizing and torque curves, consult the product catalog or contact Sugatsune’s technical team.
FAQs
How is this hinge different from a standard torque hinge?
This hinge combines adjustable torque with spring assist and full 180° free stop, allowing controlled motion and reduced opening effort across the entire range.
How do you adjust the torque?
Torque is adjusted using a 3/8" (10 mm) socket or wrench, allowing precise tuning from 0 to 31 lb·in based on lid requirements.
What lid sizes and weights are supported?
The hinge supports 2–20 lb lids, depending on height and center of gravity. Larger lids may require reduced weight or adjusted torque settings.
When should a bi-directional lift hinge be specified?
Specify this hinge when the application requires full 180° positioning, adjustable resistance, and assisted lifting without adding separate support components.
Reach Out Today
Need help specifying the bi-directional lift hinge HG-TAWJ40 for your application?
If you have specific questions, our product catalog features a helpful graph, and you can always contact our team for assistance.
