Heavy Duty
Handles low speed truck and bus traffic
Extra Heavy Duty
Handles high speed truck and bus traffic
Extreme Heavy Duty
Handles high speed truck and bus traffic and highly abrasive environments — dry dock, military
Differences
Egg Crate Construction to save on cost and weight
50% thicker base and lids, 30% more weight, stronger ramps
PLUS
More durable/dense material – Hiperthane®
Structural Specifications
Weight
21 lbs
28 lbs
30 lbs
Lid Thickness
1/4"
3/8"
3/8"
Base Thickness
1/4"
3/8"
3/8"
Ramps
Structure
Egg Crate™
Roman Arch ™
Roman Arch ™
Leading Edge
1/4"
2"
2"
Angle
22°
16°
16°
Material Specifications
Material Used
Durathane™
Durathane™
Hiperthane®
Tensile Strength
2827 psi
2827 psi
7300 psi
Elongation
303%
303%
530%
Abrasion Resistance
113 mg lost per 1000 cycle
113 mg lost per 1000 cycle
30 mg lost per 1000 cycle
Safety Ratings
Conforms to UL 94V-2 flammability tests
Conforms to UL 94V-2 flammability tests
Conforms to UL 94V-2 flammability tests
Self Extinguishing per ASTM D635-98
Load Bearing Capacity per Axle
Exceeds maximum legally permitted axle weight
Exceeds maximum legally permitted axle weight
Exceeds maximum legally permitted axle weight
1 Dog bone connector was developed by Yellow Jacket, Inc.’s parent corporation and is licensed for use by others. All products specified are 5 channel cable protectors with nominal 1.25” channels.
WHY STRUCTURE MATTERS
WEIGHT:
Greater weight gives a cable protector
Longer life
The ability to absorb more punishment
helps keep it in place
BASE AND LIDS:
Thicker lids and bases are able to handle heavier loads and more abuse
RAMPS:
Construction:
Roman Arch:
Solid construction
Easily handles impact from high speed traffic from buses, fire trucks, tractor trailers, etc.
As weight its applied, it forms suction to hold cable protector in place
Egg Crate:
Removes material from ramp
Saves weight and cost
Handles low speed traffic from trucks, buses, forklifts, etc.
Leading Edge:
Absorbs impact from tires, etc.
A longer leading edge has a greater resistance to tearing and splitting
Angle:
Shallower angles easier to roll over, reducing wear and impact
WHY MATERIALS MATTER
TENSILE STRENGHT:
The greater tensile strength of a cable protector, the more stress it can handle
ELONGATION:
Measures how far a product will stretch before breaking
Higher elongation rating means fewer fractures that lead to eventual product failure
ABRASION RESISTANCE:
Measures resistance to scraping or wearing down by friction (i.e. tires rolling over)
The lower the rating the longer the product will wear
SAFETY RATINGS:
Should be conducted by licensed, outside laboratories per national/international standards
Industry standard tests for flammability include Underwriters Laboratory Standards (UL) and ASTM International Standards (ASTM)
ABOUT LOADING BEARING RATINGS
LOAD BEARING:
These are subjective ratings. There are no recognized standards or test methods for measuring load bearing. The load bearing rating “achieved” depends on the # of tires the weight is spread over, tire width, tread pattern, type of tire (solid v. pneumatic tires) and whether the test is static or dynamic
We recommend you call the factory about your application.
