Description
ANSI #140 Roller Chain – 1¾ Inch Pitch Extreme Heavy-Duty Industrial Chain
35-Ton Tensile Strength | For Severe Shock Load Applications
Built for Extreme Load Failure Points
Tired of frequent chain breakage in mining, port, and heavy lifting systems?
The ANSI #140 Roller Chain is engineered specifically for extreme load and severe shock environments, delivering up to 35 tons tensile strength—over 3× the load capacity of standard heavy-duty chains such as ANSI #100.
With a 1¾ inch (44.45 mm) pitch and quenched alloy steel construction, this chain maintains stable power transmission where conventional chains deform, elongate, or fail.
Heavy-Duty Technical Specifications
(Values to be added by customer)
Available Models
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ANSI #140-1 (Single Strand)
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ANSI #140-2 (Double Strand)
Specification Table
(Add pitch, roller diameter, ultimate tensile strength, allowable load, weight)
Ultra-Heavy-Duty Advantages (Feature → Extreme Value)
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Thickened alloy steel side plates + deep heat treatment
→ Absorbs high-frequency impact in mining crushers and scraper conveyors without fracture -
44.45 mm large-pitch design
→ Handles high torque transmission while reducing vibration and drivetrain noise -
Reinforced corrosion protection (hot-dip galvanized / stainless steel)
→ Resists salt spray in ports and abrasive dust in open-pit mining -
Heavy-duty riveted connecting links
→ Secure installation under 35-ton tensile load, zero loosening risk -
Multi-strand load amplification
→ Triple-strand #140-3 systems support up to 105 tons for ultra-heavy machinery
Severe Application Scenarios
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Mining scraper conveyors (Difficulty: Extreme)
→ Continuous ore transport under dust and impact for 10,000+ operating hours -
Metallurgical converter tilting drives (Difficulty: Extreme)
→ Stable motion control under high thermal stress -
Port quay crane hoisting systems (Difficulty: High)
→ Reliable lifting under salt fog corrosion -
Crawler crane travel mechanisms (Difficulty: Extreme)
→ Sustains shock loads during start-stop motion -
Cement rotary kiln drives (Difficulty: High)
→ Continuous rotation under heavy thermal expansion
Wear Reality & System Efficiency
Roller chain wear is unavoidable over time.
Extreme temperatures cause metal expansion and contraction, while sand, gravel, and debris accelerate pin and bushing wear. Even the ANSI #140 heavy-duty roller chain, though exceptionally strong, is not immune—especially in severe environments.
Insufficient chain tension accelerates sprocket tooth deformation, causing rapid power loss.
Selecting the correct #140 chain size and configuration significantly reduces energy loss, minimizes elongation, and stabilizes heavy-load transmission.
Compliance & Extreme Testing
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ANSI B29.1 Heavy-Duty Standard
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ISO 9001 Quality Management
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MT/T 98-2006 Mining Chain Safety Standard
100% Tested
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Impact shock simulation (rock collision conditions)
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120% overload testing with zero permanent deformation
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Precision pitch and plate thickness inspection
Ordering & Heavy-Project Support
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Custom lengths: 100–500 ft
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High-temperature & anti-slip surface options
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Double, triple, and multi-strand customization
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Free application selection support for large equipment projects
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18-month warranty for extreme-duty use
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Priority logistics for mining & port engineering projects
Heavy-Duty FAQ
Q1: Can ANSI #140 replace a #100 chain on existing sprockets?
No. The 1¾ inch pitch requires matching #140 sprockets.
Q2: Does installation require special tools?
Heavy-duty riveting tools are recommended; installation guidance is provided.
Q3: Maintenance cycle in high-dust mining conditions?
Inspection every 500 hours is recommended for maximum lifespan.
Q4: What corrosion solutions suit port environments?
Hot-dip galvanizing and stainless steel options are available.
