Double Head Jack for Formwork & Scaffolding
The Double Head Jack is a heavy-duty adjustable support used in formwork and scaffolding systems to provide stable beam holding and accurate height adjustment. Because it is designed with a double U-head structure, it delivers better load distribution, stronger alignment, and safer support during slab and wall shuttering work.
Moreover, it is manufactured using high-strength steel with precision threading, which ensures smooth adjustment and long-term site performance. As a result, this jack becomes ideal for repetitive construction cycles and fast slab shuttering work.
Why Contractors Use Double Head Jack
The Double Head Jack is used on construction sites mainly because it:
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supports beams and decking securely
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improves shuttering stability and alignment
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allows faster work during slab formwork cycles
Therefore, it helps reduce shuttering errors and improves concrete finishing quality.
Double Head Jack – Technical Specifications
| Parameter (What Buyer Searches) | Specification / Options |
|---|---|
| Product Name | Double Head Jack / Double Headed Jack |
| Product Type | U-Head + Base Jack Combination |
| Usage / Application | Formwork beam support, slab shuttering, scaffolding alignment |
| Material | Heavy-duty MS Steel |
| Design | Double U-Head Support (Dual beam holding) |
| Thread Type | Precision Rolled Thread / Cut Thread (as per requirement) |
| Thread Diameter | 32 mm / 34 mm / 38 mm (common market sizes) |
| Thread Length | 150 mm / 200 mm / 250 mm (as per order) |
| Adjustment Method | Manual threaded height adjustment |
| Height Adjustment Range | 300–500 mm / 400–650 mm / 500–800 mm (available) |
| Base Plate Size | 120×120 mm / 150×150 mm (common) |
| U-Head Width | 120 mm / 150 mm (as per beam size) |
| U-Head Height | 75 mm / 100 mm |
| Load Capacity (SWL) | 2 Ton / 3 Ton / 4 Ton (depends on size) |
| Surface Finish Options | Painted / Powder Coated / Galvanized |
| Corrosion Resistance | Yes (best in galvanized) |
| Welding | CO2 / MIG welding for strong joints |
| Compatibility | Suitable for MS props, Cuplock, and standard formwork support |
| Packing | Bundled / Bag packing / Export packing |
📞 Need Double Head Jack price, size availability & bulk packing? Contact AMCO Exports for manufacturer rate.
Double Head Jack – Sizes & Variants (Ordering Table)
| Variant Code | Thread Dia | Thread Length | Height Range (Adjustable) | Base Plate Size | U-Head Width | SWL (Approx.) | Finish Options |
|---|---|---|---|---|---|---|---|
| DHJ-32-150 | 32 mm | 150 mm | 300–500 mm | 120×120 mm | 120 mm | 2 Ton | Painted / Powder / Galvanized |
| DHJ-32-200 | 32 mm | 200 mm | 400–650 mm | 150×150 mm | 150 mm | 3 Ton | Painted / Powder / Galvanized |
| DHJ-34-200 | 34 mm | 200 mm | 400–650 mm | 150×150 mm | 150 mm | 3 Ton | Painted / Powder / Galvanized |
| DHJ-34-250 | 34 mm | 250 mm | 500–800 mm | 150×150 mm | 150 mm | 3–4 Ton | Painted / Powder / Galvanized |
| DHJ-38-200 | 38 mm | 200 mm | 400–650 mm | 150×150 mm | 150 mm | 4 Ton | Painted / Powder / Galvanized |
| DHJ-38-250 | 38 mm | 250 mm | 500–800 mm | 150×150 mm | 150 mm | 4 Ton | Painted / Powder / Galvanized |
Recommended Standard Variant (Fast-Moving Size)
✅ DHJ-32-200
(32mm thread + 150×150 base plate + 150mm U-head)
This variant is commonly selected because it fits most slab shuttering and beam support applications.
How to Choose the Right Double Head Jack (Selection Guide)
✅ If your site work is mainly slab shuttering
Choose: 32mm / 34mm thread + 150×150 base plate + 150mm U-head
Because it provides the best balance of adjustment range and stability.
✅ If you need high load + repetitive cycling
Choose: 38mm thread + galvanized finish
Additionally, it gives better strength for demanding slab cycles.
✅ If your project is outdoor / coastal / rainy
Choose: Galvanized finish
Therefore, corrosion resistance increases and product life improves.
Contact AMCO Exports for manufacturer rate.
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Explore our Base Jack for stable ground adjustment.
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Pair with U Head Jack for beam support.
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Also available: Scaffolding Couplers for site connections.
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Check Tie Rod and Wing Nut for shuttering alignment systems.
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View complete Cuplock Accessories (Top Cup / Bottom Cup).
Key Features
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Adjustable height with precision threaded mechanism
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Heavy-duty steel construction for high load capacity
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Double U-head support for better beam stability
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Compatible with standard formwork and scaffolding systems
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Available in powder-coated / galvanized finish for corrosion resistance
Common Applications
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Beam and slab shuttering support
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Formwork alignment and leveling
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Shuttering reinforcement and structural stability
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Construction platforms and shoring systems
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High-load support for repeated concrete pours
Where and Why It Is Used
This jack is ideal for modern construction sites because it provides:
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Dual-purpose support for formwork beams + scaffolding adjustment
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Faster stripping of decking panels without disturbing the support structure
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Flexible use in slab formwork, wall formwork, and shoring operations
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Time-saving performance for rapid construction cycles
The unique double-head design helps contractors remove decking elements efficiently while keeping the support system in place, improving productivity and site safety—especially on high-rise and repetitive slab projects.
Key Specifications
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Type: Double Headed Jack (U-Head & Base Jack combination)
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Function: Dual-purpose support + height adjustment
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Design: Integrated U-head and base threaded mechanism
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Application: Formwork support and scaffolding alignment
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Material: Heavy-duty steel for enhanced load capacity
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Finish: Powder-coated / Galvanized (as per requirement)
FAQ – Double Head Jack
Q1: What is the main advantage of using a Double Head Jack?
A: Its biggest advantage is faster work on site. It allows contractors to remove decking panels and beams while keeping support in place, saving time and labor during stripping.
Q2: How is it different from a standard U-head jack?
A: A standard U-head jack offers only top adjustment. The double head jack provides dual adjustment capability with better stability and more efficient formwork operations.
Q3: Which projects benefit most from this jack?
A: It is best for high-rise buildings, repetitive slab construction, parking structures, and projects that require fast shuttering cycles.
Q4: Is it compatible with standard formwork systems?
A: Yes, it fits most standard aluminum, steel, and timber formwork configurations.
Q5: Do you manufacture these jacks in India?
A: Yes. AMCO Exports is a manufacturer of double headed jacks and heavy-duty formwork support components for domestic and international markets.
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Explore our Base Jack for stable ground adjustment.
-
Pair with U Head Jack for beam support.
-
Also available: Scaffolding Couplers for site connections.
-
Check Tie Rod and Wing Nut for shuttering alignment systems.
-
View complete Cuplock Accessories (Top Cup / Bottom Cup).
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