PRODUCT
Czech Hedgehog Dimensions & Weight Specifications
Precision-engineered anti-tank obstacles manufactured to original Czech military specifications. Available in standard (1.8m) and heavy (2.1m) arm-length variants.
Gallery
Czech Hedgehog — Standard Dimensions
Detailed Dimension Diagram
Weight Specifications Chart
L-Profile Angle Steel Material
OVERVIEW
Standardized Dimensions for Proven Defense
The Czech Hedgehog is a static anti-tank obstacle constructed from three L140×140×13mm hot-rolled equal angle steel arms welded at right angles to form a three-dimensional cross. First developed in 1930s Czechoslovakia, this proven design has been manufactured to consistent dimensional standards for over 80 years, with two primary variants recognized globally.
The standard variant features 1,800mm arm lengths with a unit weight of approximately 198kg, while the heavy variant extends arms to 2,100mm for a total weight of 240kg. Both variants use the same L140 profile angle steel and share identical connection methods — factory-welded gusset plates reinforced with M20 grade 8.8 bolts for on-site assembly of the third arm.
Each unit includes six square base plates (150×150mm, 12mm thick) welded to arm ends to prevent ground sinking, plus barbed wire attachment notches. The design achieves a tested load capacity exceeding 60 tonnes-force, sufficient to disable main battle tanks by lifting their tracks off the ground upon traversal.
L 140×140×13mm equal angle steel — three arms welded at 90° spatial intersection
Specifications
Technical Specifications
Technical Specifications
Engineering illustration with critical dimensions annotated for fabrication quality control
Dimensions & Sizes
| Parameter | Value |
|---|---|
| Material | L 140×140×13mm — EN 10025 S235JR Hot-Rolled Equal Angle Steel |
| Arm Length (Standard) | 1,800 mm (arms intersect at 90° spatial angle) |
| Arm Length (Heavy) | 2,100 mm (arms intersect at 90° spatial angle) |
| Unit Weight (Standard) | 198 kg (including gusset plates, base plates, bolts) |
| Unit Weight (Heavy) | 240 kg (including gusset plates, base plates, bolts) |
| Load Capacity | ≥ 60 tonnes-force (tested against main battle tank weights) |
| Connection Method | Factory welding (gusset plates) + M20 grade 8.8 bolts for field assembly |
| Base Plate | 150×150×12mm steel plate, welded to each arm end (6 per unit) |
FEATURES
Key Features
Standardized Production Dimensions
Every unit fabricated to consistent dimensional tolerances with certified materials
Standardized Two-Variant System
Choose between the 1.8m standard (198kg) for light-to-medium vehicles or the 2.1m heavy variant (240kg) for main battle tank defense. Both share the same L140 steel profile and connection hardware.
M20 Bolted Field Assembly
Third arm ships detached with M20 grade 8.8 bolts for rapid on-site assembly. Two arms are factory-welded with gusset plates, reducing field labor to minutes per unit.
Anti-Sinking Base Plates
Six welded 150×150×12mm square base plates prevent the hedgehog from sinking into soft ground, maintaining effective height and obstacle integrity on all terrain types.
Barbed Wire Integration Points
Pre-welded notches on each arm allow rapid attachment of concertina or barbed wire, creating an integrated anti-infantry barrier system without modification.
Container-Optimized Flat-Pack
Disassembled flat-pack configuration enables 60-80 units per 20ft container (vs 30-40 assembled), reducing per-unit shipping cost by up to 50% for bulk export orders.
EN 10025 Certified Steel
All material conforms to EN 10025 S235JR or S355JR hot-rolled structural steel standards, with mill certificates provided for traceability and quality assurance.
Applications
Where It's Installed
Military Anti-Tank Defense
Standard 1.8m and 2.1m hedgehogs deployed in staggered rows to stop medium and main battle tanks.
Border Fortification
NATO eastern flank defenses use standardized hedgehog dimensions for integrated barrier planning.
Critical Infrastructure Protection
Anti-ram barriers at airports, embassies, power plants and government buildings.
Perimeter Security
Combined with barbed wire and barriers for comprehensive vehicle perimeter defense systems.
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