SWL Series Hand Wheel Worm Gear Screw Jack for Lifting Equipment

SWL Series Hand Wheel Worm Gear Screw Jack for Lifting Equipment

A hand crank screw jack is composed of a hand wheel or hand crank and a worm gear screw jack, which has intermittent precise positioning and a self-locking feature for no creeping down without a brake mechanism or other locking systems. When manual ball screw jack, no self-locking feature, avoid ball screw back drive with attached load, which needs additional brake mechanism or other locking system to prevent it creep. A manual screw jack is an ideal solution for applications where electricity or power generators are inconvenient or dangerous, lightweight, have low duty cycle, have low target cost, and have short travel lengths.

Worm Gear Screw Jack Structural Types

Structural form	Type Ⅰ: axial movement of the screw rod	Type Ⅱ: the screw rod rotates and the nut moves axially
Assembly type	Type A – a rod (or nut) moves upward	Type B — screw rod (or nut) moves downward
Screw head type	The screw head of Type 1 structure type includes Type I (cylindrical type), Type II (flange type), Type III (threaded type), and Type IV (flat head type);	The screw head part of the type 2 structure is of type I (cylindrical type) and type III (threaded type)
Transmission ratio	Normal speed ratio (P), slow speed ratio (M)
Lifting the bearing capacity	2.5,5,10,15,20,25,35( × 10kN) seven kinds
Protection of screw rod	Type 1 structure includes basic type, anti-rotation type (F), and types with a protective cover (z);	Type 2 structure includes the basic type and type with a protective cover (Z)

Hand Wheel Worm Gear Screw Jack Model Nomenclature:

Hand Wheel Worm Gear Screw Jack Parameters:

Hand Wheel Worm Gear Screw Jack Parts:

The worm gear screw jack housings are made of ductile iron and proportioned to support the rated capacity of the unit. models have aluminum housings. This worm gear screw jack incorporates an alloy steel worm which drives a high-strength bronze worm gear ( drive sleeve ). The worm shaft is supported on anti-friction tapered roller bearings with external seals provided to prevent loss of lubrication. The drive sleeve is supported on the anti-friction tapered roller or ball thrust bearings. rotation of the drive sleeve causes the lifting screw to translate or rotate, depending upon the jack configuration.The working principle of the hand wheel worm gear screw jack is that the worm ( also called the input shaft ) is manually rotated by the hand wheel. the worm wheel (also called the worm gear ) is rotated by the worm, and the trapezoidal lifting screw is moved by the rotating worm wheel.

Hand Wheel Worm Gear Screw Jack Features:

1. Suitable for heavy load, low speed, and low frequency;2. Main components: precision trapezoid screw pair and high precision worm gear pair;3. It has a self-locking function and can hold up the load without the braking device.4. Top End: top plate, clevis end, threaded end, plain end5. Widely applied in industries such as machinery, metallurgy, construction, and hydraulic equipment.6. Enjoy many functions such as lifting, pushing, and turning.7. Enjoy features of compact structure, small volume, light weight, wide drive sources, low noise, high reliability, and long service life.8. Easy to be mounted, and flexible in use.9. Accurately control the height of lifting or pushing.

Customized Worm Gear Screw Jack

We are the factory with the ability to customize the worm gear screw jack to your specific requirements for your application. Please share detailed information including your use scenario, required loading capacity, reduction ratio, power source, stroke length, and other requests. Our sales and technical team will provide solutions and drawings for your confirmation.

Worm Gear Screw Jack Model Selection Guide:

Step 1: select the corresponding model according to your load capacity requirements,Step 2: confirm the reduction ratio: 1/6, 1/12, or 1/24. If you need a special speed ratio, please contact our sales team.Step 3: Determine the head form of the screw, there are cylinder type, nut type, flange type, thread type, and flat head type for your option.Step 4: confirm the screw length or stroke you need. The default stroke is 500mm, and the screw length can be customized according to different needs.Step 5: confirm the accessories you need, such as matching motors, hand wheels, protection tubes for screws, dust cover, anti-rotation functions, nuts, etc.Contact us now to get your customized worm gear screw jack.

Professional Worm Gear Screw Jack Manufacturer

With over 10 years of professional manufacturing experience, our specialized workers always produce worm screw lift with refined craftsmanship and consistent quality. Whether working on large volume orders or simply 1 set, our standardized production process makes sure you get the same level of high-quality worm jacks at a short lead time.

• Well-trained Staffs
• Extensive Manufacturing experience
• Fully-equipped Production Workshop
• Well-established manufacturing standard