ESCO 12520 100 Ton Cribbing Block, Interlocking w/ Handle (21" x 5" x 5.25")
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ESCO 12520 100 Ton Cribbing Block - Interlocking w- Handle
The ESCO 12520 CribLok system delivers superior heavy-duty cribbing with 100-ton capacity and innovative interlocking design that outlasts traditional wood and composite blocks. Measuring 21" x 5" x 5.25" with a built-in handle, this lightweight yet durable block provides waterproof, rot-proof, and oil-resistant construction for indoor and outdoor use. The pyramid-style interlocking mechanism prevents block movement under load, while 10% weight reduction compared to competitors makes handling and storage easier. Tested to a 2-to-1 safety factor, the 12520 assembly only requires 2 blocks for a stable foundation instead of 3-4 needed by other systems.
ESCO 12520 Features
100-Ton Load Capacity with 2-to-1 Safety Factor
The 12520 safely supports loads up to 100 tons (200,000 lbs) with a 2-to-1 safety factor, verified by independent third-party testing. This industry-leading rating provides confidence for professional heavy-duty applications where safety is non-negotiable. The block meets strict capacity requirements for automotive, fleet, and industrial lifting operations.
Patented Interlocking System Prevents Movement
The pyramid-style interlocking design on all sides prevents blocks from shifting or separating under load. Unlike traditional stacked cribbing, the interlocking mechanism creates a unified structure with zero voids between contact points, delivering maximum stability and safety during critical lifting operations.
Waterproof, Rot-Proof, and Chemical-Resistant
Constructed from ultra-durable UHMW polyethylene plastic, the 12520 resists water absorption, rot, brittleness, and deterioration. The material is resistant to oil, fuels, and other chemicals, making it suitable for harsh outdoor environments, fuel storage areas, and chemical spills. Unlike wood, it maintains integrity and safety regardless of environmental conditions.
10% Lightweight Design for Easier Handling
The 12520 is 10% lighter than competitive cribbing blocks while maintaining full 100-ton capacity. This weight reduction makes the blocks easier to handle, reducing technician fatigue during assembly and reducing transportation costs. The 21-inch length with built-in handle enables single-operator control and storage in tight spaces.
Compact Footprint for Job Site Efficiency
At 21 inches long with 18 square inches of contact surface (324 sq in), the 12520 provides a smaller footprint than traditional cribbing. This design reduces storage space requirements on trucks, in shops, and at job sites. Yet only 2 blocks are needed for a solid foundation, compared to 3-4 required by competitor systems.
High-Visibility Color for Safety and Inspection
The black and red color scheme with bright visibility promotes workplace safety and makes blocks easy to locate on job sites. The color contrast makes visual inspection simpler, allowing technicians to quickly verify block condition and alignment during critical lifting operations.
ESCO 12520 Applications
- Automotive Heavy Lifting: Essential for supporting vehicles during major service, transmission replacement, engine work, and structural repairs requiring 100-ton stability.
- Fleet Maintenance and Heavy Equipment Service: Provides safe, durable support for large trucks, trailers, construction equipment, and agricultural machinery during maintenance and repair.
- Industrial Lifting and Load Support: Suitable for machinery installation, factory equipment relocation, warehouse operations, and heavy industrial applications.
- Off-Road and Specialty Tire Service: Ideal for supporting OTR (off-the-road) tires and large equipment during tire service, inspection, and repair work.
- Job Site and Field Operations: Portable cribbing solution for mobile repair services, roadside assistance, and remote locations where durability and chemical resistance are critical.
ESCO 12520 Specifications
| Specification | Value |
|---|---|
| Load Capacity | 100 tons (200,000 lbs / 90,718.5 kg) |
| Safety Factor | 2-to-1 (tested by third-party facility) |
| Load Type | Static load support |
| Specification | Value |
|---|---|
| Length | 21 inches (53 cm) |
| Width | 9 inches (23 cm) |
| Height | 5.25 inches (12.7 cm) |
| Contact Surface Area | 324 square inches (18 inches on each side) |
| Weight Per Block | 33 lbs |
| Specification | Value |
|---|---|
| Material | Ultra-durable UHMW polyethylene plastic |
| Interlocking System | Pyramid-style interlocking on all sides |
| Handle | 2 built-in handles per block |
| Color | Black with red handle accents |
| Environmental Resistance | Waterproof, rot-proof, oil-resistant, chemical-resistant |
| Comparison Weight | 10% lighter than competitive brands |
What's Included with the ESCO 12520
- 1 ESCO 12520 100-Ton Cribbing Block (complete)
- 2 built-in carry handles for easy transport
- Ready for immediate use - no assembly required
- Compatible with ESCO CribLok system top and bottom plates (sold separately)
Optional Accessories: ESCO CribLok top plates (Model 12523) and bottom plates (Model 12521) to create complete cribbing systems and kits.
Not Included: Installation support equipment, jacks, or lifting tools. The 12520 is a support block and requires proper lifting equipment to place loads.
ESCO 12520 Shipping and Delivery
Freight Shipping
Coverage: Free standard shipping to commercial addresses in the 48 contiguous United States. Lead Time: 5-7 business days for in-stock orders. International: Contact sales for international freight quote.
Delivery Requirements
Package Type: Individual block ships via standard parcel service. Delivery Type: Standard ground delivery. Inspection: Inspect package upon receipt for any damage before accepting delivery. Verify block condition and handle integrity.
Returns Policy
Returns accepted within 30 days of delivery on unused products in original condition with receipt. 20% restocking fee applies to items showing signs of use. Buyer responsible for return shipping costs. Contact customer service to initiate return.
ESCO 12520 Warranty
ESCO Limited Lifetime Warranty
ESCO stands behind the durability and safety of the 12520 CribLok block with comprehensive coverage against manufacturing defects and material failure.
- Lifetime: Full coverage for structural defects, interlocking mechanism failures, and handle deterioration
- Material Guarantee: Protection against brittleness, cracking, and deterioration from normal use and environmental exposure
- Exclusions: Damage from misuse, overload beyond rated capacity, modification, or improper storage
Requirements: Warranty is valid on products used in accordance with manufacturer specifications and safety guidelines. Keep proof of purchase for warranty claims.
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Questions About the ESCO 12520?
Our equipment specialists can help with cribbing system setup, capacity planning, and product selection for your heavy-duty lifting applications.
ESCO 12520 FAQ
What is the weight capacity of the ESCO 12520?
The 12520 has a 100-ton (200,000 lbs / 90,718.5 kg) load capacity, verified by third-party testing with a 2-to-1 safety factor. This means the block is tested and rated to safely support loads up to 100 tons without risk of failure. Never exceed the rated capacity as this will compromise safety and damage the block.
How many blocks do I need for a stable foundation?
A stable foundation requires only 2 ESCO 12520 blocks, compared to 3-4 blocks required by competitor systems. The interlocking design and larger contact surface area (324 square inches) provide superior stability with fewer blocks, reducing costs and storage requirements while maintaining 100-ton capacity.
What makes the interlocking design safer than stacked blocks?
The pyramid-style interlocking mechanism on all sides prevents blocks from shifting or separating under load. Traditional stacked blocks can slide apart under pressure, but the ESCO system creates a unified structure with zero voids between contact points. This interlocking design ensures maximum stability and safety during critical lifting operations.
Will the 12520 deteriorate in outdoor conditions?
No. The 12520 is constructed from ultra-durable UHMW polyethylene plastic that is waterproof, rot-proof, and resistant to brittleness. Unlike wood cribbing that deteriorates from moisture and weather, the 12520 maintains its integrity indoors and outdoors, in hot climates, cold climates, and harsh environments.
Is the 12520 chemical and oil resistant?
Yes. The UHMW plastic material is resistant to oil, fuel, and other chemicals. This makes the 12520 suitable for use in automotive shops, fleet maintenance facilities, fuel storage areas, and industrial environments where spills and chemical exposure occur regularly.
How much does each block weigh?
Each ESCO 12520 block weighs 33 lbs. Despite this weight, one technician can easily handle and transport blocks using the built-in dual handles. The blocks are 10% lighter than competitive cribbing options, reducing fatigue during handling and making storage and transportation more efficient.
Can the 12520 be used with ESCO top and bottom plates?
Yes. The 12520 is designed to work with the ESCO CribLok system, including the Model 12523 top plates and Model 12521 bottom plates. These plates feature interlocking design to match the blocks, creating a complete integrated system for maximum safety and stability.
What is the contact surface area?
The 12520 has 324 square inches of contact surface area (18 inches on each side). This larger contact area, combined with the interlocking mechanism, distributes load evenly and provides superior stability compared to smaller blocks. The 21-inch length keeps the footprint compact for job site efficiency.
Is the 12520 tested and certified?
Yes. The ESCO 12520 is independently tested to ASTM and industry standards by a third-party testing facility to a 2-to-1 safety factor. This verification confirms that the block safely supports the rated 100-ton capacity with margin for overload protection. Certification documentation is available upon request.
Can I use the 12520 for mobile equipment service?
Absolutely. The 12520 is ideal for mobile repair services, roadside assistance, and field operations. The dual handles make transport easy, the compact 21-inch design fits trucks, and the waterproof, chemical-resistant construction handles any environment. Blocks assemble into stable platforms in seconds.
How do I maintain the 12520?
The 12520 is virtually maintenance-free. Simply keep the blocks clean and store in a dry location when not in use. Inspect the interlocking surfaces and handles periodically for damage. The UHMW plastic requires no lubrication, coating, or special treatment. The material resists UV damage and environmental degradation.
What warranty does the 12520 include?
The 12520 includes a limited lifetime warranty covering structural defects, interlocking mechanism failures, and material deterioration from normal use. The warranty does not cover damage from misuse, overload, modification, or improper storage. Keep your receipt as proof of purchase for warranty claims.
California Proposition 65 Warning
WARNING: This product can expose you to lead, which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.p65warnings.ca.gov.
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