Journal Ratchet Screw Jack

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Journal Ratchet Screw Jack Specification

Product Type
Journal Ratchet Screw Jack

Material
High grade cast iron or steel

Lifting Capacity
5 to 50 tons (depending on model)

Handles
Provided for ease of carrying/operation

Withstand Voltage
Not applicable (mechanical device, no electrical insulation)

Application
Lifting heavy loads, maintenance, railways, construction, industrial uses

Insulation Resistance
Not applicable (metal construction)

Height
Variable (model dependent), commonly 12 - 24

Weight
Varies by capacity, typically 8-20 kg

Color
Metallic silver/grey

Maintenance
Low, periodic lubrication recommended

Lubrication
Grease fittings provided for moving parts

Base Type
Wide stable base for enhanced stability

Minimum Height
Generally 300 mm (model dependent)

Maximum Height
Up to 800 mm (model dependent)

Top Plate
Serrated or grooved to prevent load slippage

Jack Type
Mechanical screw jack

Safety
Load stop at maximum extension height

Operation Mechanism
Manual ratchet drive

Main Feature
Heavy-duty construction with smooth ratchet operation

Usage Environment
Suitable for outdoor and industrial environments

Corrosion Resistance
Yes, painted or plated finish

About Journal Ratchet Screw Jack

As one of the renowned manufacturers and exporters in this domain, we are offering our customers the best quality Journal Ratchet Screw Jack. Acknowledged for their durability, this finds wide applications in diverse industries like automobile, construction and electrical. Available in full and standard port models, this rugged, high pressure jack is ideal for process, severe service, high temperature, and high cycle applications. Moreover, this Journal Ratchet Screw Jack is available in diverse specifications at affordable prices.

Technical Specification

Model No.	Cap. In Ton	Min. Ht. In mm	Max. ht. In mm	Lift in mm	Base dia. In mm	Head dia in mm
JR-5	5	254	381	127	120	69
JR 10	10	254	381	127	120	69
JR 15	15	254	381	127	120	69
JR 25	25	254	381	127	152	95
JR 35	35	254	381	127	152	95
JR 50	50	304	418	114	215	95
JR 100	100	310	424	114	235	128

Strong and Stable Construction

The Journal Ratchet Screw Jack boasts heavy-duty construction with a wide, stable base to prevent tipping during use. The serrated top plate ensures that loads stay firmly in place, minimizing the risk of slippage and enhancing safety in diverse working conditions.

User-Friendly Operation and Maintenance

Engineered for efficiency, the manual ratchet drive allows for smooth and controlled lifting. Grease fittings are included for easy periodic lubrication, ensuring long service life and consistent performance with minimal maintenance effort required.

Ideal for Challenging Environments

Designed to withstand outdoor and industrial environments, this mechanical jack is protected by a corrosion-resistant painted or plated finish. Its reliability makes it perfect for railway maintenance, construction projects, and other heavy-duty lifting tasks.

FAQ's of Journal Ratchet Screw Jack:

Q: How does the manual ratchet drive mechanism operate on this screw jack?

A: The manual ratchet drive allows the user to lift heavy loads efficiently by moving a handle back and forth, rotating the screw and raising the top plate incrementally. Its smooth ratcheting action ensures precise and controlled lifting.

Q: What are the benefits of having a wide and stable base on the jack?

A: A wide and stable base significantly reduces the risk of tipping when lifting heavy loads, providing enhanced stability and safety during operation, particularly on uneven surfaces often encountered in industrial or outdoor environments.

Q: When should I perform maintenance or lubrication on the jack?

A: Periodic maintenance is recommended, primarily involving lubrication of moving parts through the provided grease fittings. Depending on the frequency of use and working conditions, checking lubrication levels every few months helps ensure smooth operation.

Q: Where can this journal ratchet screw jack be used effectively?

A: This jack is well-suited for use in railway maintenance, construction projects, industrial settings, and any application requiring the lifting and support of heavy loads outdoors or on-site.

Q: What safety features are included in this mechanical screw jack?

A: Safety is enhanced by a load stop that prevents over-extension beyond the maximum height, a serrated or grooved top plate to minimize load slippage, and durable construction for reliable support under maximal load conditions.

Q: Can the jack's height and capacity be adjusted for different tasks?

A: Yes, the jack's height ranges from 300 to 800 mm depending on the model, and lifting capacities vary from 5 to 50 tons, allowing users to select the most suitable model for specific job requirements.

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