C & E-SERIES SCREW JACKS
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C & E-SERIES SCREW JACKS

Screw Jack Design Guide Company Overview Best engineered solution for precision linear actuation, power transmission & jacking systems.

C & E-Series Screw Jacks www.powerjacks.com Company Overview OUR EXPERTISE HAS BEEN BUILT ON A HISTORY OF MORE THAN 100 YEARS OF ENGINEERING, CRAFTSMANSHIP, VISIONARY DESIGN, QUALITY MANUFACTURE AND CUSTOMER CARE. Power Jacks is a manufacturing/engineering company specialising in the design and manufacture of actuation, lifting and positioning solutions for applications in Industrial Automation, Energy, Defence, Medical, Transport, and the Civil Engineering sectors. Headquartered near Aberdeen in the UK, the company is the UK’s largest screw jack manufacturing facility, that uses the latest...

• 2D CAD Drawings • 3D CAD Models • Dimensioned Data Sheet

Compare Screw Jack Sizes C-Series - Translating Screw E-Series - Translating Screw E-Series - Rotating Screw

Compare Screw Jack Sizes C-Series - Rotating Screw

Translating Screw Jack Building System C-Series - Machine Screw Jack E-Series Machines Screw Jack E-Series Stainless Steel Screw Jack E-Series Ball Screw Jack Lead Screw Options: 1. Standard 1 x Pitch 2. 2 x Pitch 3. Anti-Rotation (Keyed) 4. Stainless Steel 5. Left Hand Thread Bellows Boot Electric Motor with or without: • Brake • Encoder Motor Adaptor • Forced Ventilation Rotary Limit Switch Adaptor Drive Shaft Stop Nut Rotary Limit Switch Secondary Guide Brake Hand Wheel * For use with Anti-Backlash and some safety nut models only. Limit Switches Trunnion Feet Double Clevis mount Special...

Rotating Screw Jack Building C-Series - Machine Screw Jack E-Series Machines Screw Jack E-Series Stainless Steel Screw Jack E-Series Ball Screw Jack Lead Screw Options: 1. Standard 1 x Pitch 2. 2 x Pitch 3. No Pilot End 4. Stainless Steel 5. Left Hand Thread 6. Larger Diameter Screw Motor Adaptor Electric Motor with or without: • Brake • Encoder • Forced Ventilation Rotary Limit Switch Adaptor Drive Shaft Trunnion Feet Rotary Limit Switch Trunnion Brake Hand Wheel Special Screw Jacks Design Available when you need more than the standard solution. www.powerjacks.

Jacking Systems Screw jacks can be connected together in systems so that multiple units can be operated and controlled together. These jacking system arrangements or configurations can be built in many formats with the use of bevel gearboxes, motors, reduction gearboxes, drive shafts, couplings, plummer blocks and motion control devices. Four of the most popular system configurations are the ‘H’, ‘U’, ‘T’ and ‘I’ configured jacking systems. Note that multiple screw jacks can be linked together mechanically or electrically. The latter is useful if there is no space for linking drive shafts....

Jacking Systems Jacking systems are not limited to the number of screw jacks shown here. They are regularly supplied to clients with 2, 4, 6, 8 jack systems. Larger systems can extend up to 16 or higher. With the use of electronic synchronisation/control multiple systems or screw jacks can be used in unison. Extending the possible number of screw jacks used in unison in excess of 100. To facilitate electronic control of screw jacks, feedback devices (eg encoder, limit switch) are available, mounted on the screw jack or its motor or another system component.

Screw Jack Product Code 1 GROUP-1 - Screw Jack Gearbox Definition 2 GROUP-2 - Screw Jack Features

Screw Jack Product Code 1 GROUP-1 - Screw Jack Gearbox Definition Machine Screw Rotating Screw Ball Screw Translating Screw Upright - All Stainless Steel Screw Jack #16 Option 1 Ratio with gear rotation monitor #12 Inverted - All Stainless Steel Screw Jack Option 2 Ratio with gear rotation monitor #12 13 - Lifting Screw Lead 10 - Gearbox Feature - 1 Option 1 Lead - Right Hand (Standard) Option 2 Lead - Right Hand Anti-Rotation (Keyed) Option 1 Lead - Left Hand #5 Secondary Guide Option 2 Lead - Left Hand #5 Anti-Rotation (keyed) with Secondary Guide Trunnion Nut with Feet 14 - Worm Shaft...

Screw Jack Product Code GROUP-2 - Screw Jack Features 24 - Lifting Screw Material #16 Standard with Low Friction Coating (Molycote) Stainless Steel 21 - Character Space 22 - End Type Standard with Protective Coating (Armaloy) Cover Pipe & No Bellows Boot #15 Fork End (standard available up to 200KN) Cover Pipe & Fabric Bellows Boot #9 Fabric Bellows Boot x 2 - Rotating Screw Cover Pipe & Rubber Bellows Boot #9 Rubber Bellows Boot x 2 - Rotating Screw No Cover Pipe & No Bellows Boot #9 Cover Pipe & PU Waterproof Bellows Boot #9 PU Waterproof Bellows Boot x2 - Rotating Screw 25 - Lifting...

Screw Jack Product Code Standard Paint & Food Grade Lubricant & Standard Seals Standard Paint, Nuclear Grade Lubricant & Seals Standard Paint, High Temperature Lubricant & Seals Standard Paint, Low Temperature Lubricant & Seals Standard Paint, Biodegradable Lubricant & Standard Seals No Paint, Standard Lubricant & Seals No Paint & Food Grade Lubricant & Standard Seals No Paint, Nuclear Grade Lubricant & Seals No Paint, High Temperature Lubricant & Seals No Paint, Low Temperature Lubricant & Seals No Paint, Biodegradable Lubricant & Standard Seals Standard Primer, Lubricant & Seals Standard...

Selecting a Screw Jack Five Step Guide to Initial Screw Jack Selection The following selection procedure is applicable for Machine Screw and Ball Screw Jacks. Calculate Power and Torque Requirements Select a screw jack from the tables with adequate load carrying capacity and note the screw jack static and dynamic efficiency for required input speed. Step 1 - Screw Jack Input Speed Linear Speed (mm/min) x Gear Ratio Pitch (mm) x N° of Starts on Lifting Screw Input speed should not exceed 1800 rpm. Number of starts on lifting screw is usually 1, unless otherwise stated. Note: Screw Lead =...

Selecting a Screw Jack Example Selection Application Constraints • • Load on Screw Jack = 15 kN in Tension Linear Speed required = 100 mm/min Consider all application constraints then choose a screw jack that looks suitable for the application with a load rating equal to or greater than the maximum working load. For this example, a 25 kN E-Series Machine Screw Jack (refer P60) with translating screw, 6:1 gear ratio, single start lifting screw (6 mm lead). Calculate Power and Torque Requirements Step 1 - Screw Jack Input Speed 100 (mm/min) x 6 (Gear Ratio) 6 (mm) x 1 (N° of starts on Lifting...