When it comes to lifting, pushing, or stabilizing heavy loads, Simplex hydraulic and mechanical jacks offer the power, precision, and reliability demanded by professionals across industries. With decades of proven engineering, Simplex is a trusted name in both hydraulic and mechanical jacking systems. These jacks are indispensable in construction, transportation, energy, shipbuilding, and manufacturing throughout the United States.

In this article, we’ll explore what Simplex hydraulic and mechanical jacks are, how they work, where they’re used, what accessories they require, and how different industries rely on them to get the job done.

What Are Simplex Hydraulic and Mechanical Jacks?

Simplex jacks are industrial lifting tools designed to move, raise, or stabilize extremely heavy equipment and structures. The product line includes both hydraulic jacks and mechanical jacks, each with its own advantages depending on the application.

• Hydraulic Jacks use fluid pressure to generate force. These include hand jacks, toe jacks, and bottle jacks, among others. Hydraulic models are compact, high-tonnage, and ideal for precision lifting.
• Mechanical Jacks operate through manual force, typically using a screw or ratcheting mechanism. Mechanical models, such as screw jacks and ratchet jacks, are robust and simple to use in environments without a hydraulic power source.

Both types are known for their rugged construction, reliability, and ability to handle loads from 5 tons to over 100 tons, depending on the model.

Where and How Are They Used?

Simplex jacks are utilized in a wide range of environments and situations:

• Construction Sites: For lifting steel beams, shoring up foundations, or stabilizing bridge structures.
• Railroad Maintenance: Raising rail cars and adjusting tracks.
• Shipbuilding & Marine Yards: Dock and hull adjustments.
• Utility Companies: Supporting transformers and large pipe systems.
• Manufacturing Facilities: Moving heavy machinery and presses.

Mechanical jacks are often favored for static lifts where electricity or hydraulics aren’t practical. Hydraulic jacks excel in mobile and high-tonnage environments where speed and force are essential.

Accessories for Simplex Jacks

Both hydraulic and mechanical jacks benefit from accessories that expand their capabilities and improve safety:

• Hydraulic Pumps: For hydraulic models, these can be hand, air, or electric powered.
• Hoses & Couplers: Durable, high-pressure rated connections ensure safe fluid transfer.
• Saddles and Base Plates: Distribute load evenly and help align jacks.
• Locking Collars & Extension Tubes: Provide load-holding support and extend stroke reach.
• Jack Handles: Used with mechanical models to manually operate the screw or ratchet mechanism.

Having the correct accessories on hand can improve both operational efficiency and job site safety.

Which Industries Use Them in the USA?

Simplex hydraulic and mechanical jacks are used by a broad array of industries, including:

• Construction and Civil Engineering
• Rail and Transportation Maintenance
• Utilities and Power Generation
• Aerospace and Defense
• Heavy Equipment Manufacturing
• Mining and Resource Extraction
• Shipbuilding and Port Operations

These jacks are the unsung heroes that help move America’s infrastructure forward.

Fun Facts & Technical Insights

• High Capacity: Some Simplex hydraulic jacks can lift over 150 tons with ease.
• PSI Ratings: Most hydraulic models operate at up to 10,000 PSI, delivering powerful, controlled force.
• Made in the USA: Simplex jacks are designed and built with American engineering and materials.
• Compact Power: Mechanical models may appear simple, but they can provide incredible lifting power in tight spaces.
• Interchangeability: Many Simplex accessories and fittings are compatible with industry-standard hydraulic equipment.

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