698HT Forged Rivetless Chain
Hangzhou Ocean Industry Co., Ltd. is one of the most experienced manufacturers and suppliers of 698ht forged rivetless chain in China. Welcome to wholesale customized 698ht forged rivetless chain at competitive price from our factory. Good service and quality products are available.
XT348 Industrial Drop Forged Rivetless Chain for Intermediate Heavy-Duty Transport
When a processing line moves abrasive, wet and corrosive material around the clock, the chain is no longer a commodity - it is the bottleneck that decides whether the plant runs or stops. The 698HT forged rivetless chain from Hangzhou Ocean Industry Co., Ltd. was developed specifically for that reality. Forged as a single bar-loop from AISI 4140 / 40Cr alloy steel and then fully heat treated, the 698HT carries the heavy, shock-loaded duty that a standard roller chain simply cannot survive in cane and beet sugar processing, cement clinker transfer or mine aggregate handling.
The defining advantage of a rivetless design is field serviceability. Because the sidebars interlock around a symmetrical T-head pin instead of being riveted, any worn or damaged link can be knocked out and replaced on the floor in minutes - no grinder, no press, no shutdown of the whole loop. Drop forging keeps the steel's grain flow continuous around each curve of the link, so the 698HT drop forged chain resists elongation and fatigue far better than a cut-and-welded alternative, holding pitch accuracy through millions of cycles in juice-soaked, bagasse-laden environments.
Compared with lighter forged families, the 698HT runs on a 152.4 mm (6.00 in) pitch with a 39.0 mm pin and a 72.0 mm sidebar, delivering an ultimate breaking load of at least 1078 kN. That margin is what lets a single strand lift and drag full carrier loads, wet bagasse and clinker without the premature stretch that forces unplanned maintenance. For buyers running sugar-mill carrier, feed and discharge conveyors, the chain is the difference between a planned shutdown and a lost production shift.
Hangzhou Ocean Industry supplies the 698HT as a complete system, not just a length of chain. We match every order with 698-class sprockets, forged trolleys, hanging plates and scraper bars, and we tailor the surface finish - anti-rust oil, shot peening or epoxy - to the exact corrosiveness of your process. Whether you need a trial section or a full mill retrofit, our engineering team quotes against your layout, load and speed so the chain you receive is the chain your line actually needs.
Our 698HT Forged Rivetless Chain (also known as X698 chain) is engineered for maximum durability in high-load industrial environments. Specifically designed with a high strength-to-weight ratio, the 698HT variant offers superior tensile strength and wear resistance compared to standard X-series chains, making it the ideal choice for automotive assembly lines, paint ovens, and heavy material handling.
| Chain NO. | Specifications | Average Tensile Strength | Approx.Weight | ||||||
| P | A | F | G | J | K | S | |||
| 80H | 80 | 73 | 42 | 18.4 | 20 | 34.5 | 19.5 | 270 | 7.8 |
| 468H | 102.4 | 84.1 | 47.8 | 18 | 29.5 | 42.9 | 22.2 | 342 | 11.5 |
| X348 | 76.6 | 46 | 27 | 12.7 | 12.7 | 20.6 | 13.5 | 130 | 3.2 |
| X458 | 102.4 | 57 | 37 | 16 | 16 | 26.5 | 17.5 | 245 | 5.2 |
| X678 | 153.2 | 77 | 50.8 | 22.2 | 21 | 34.2 | 25 | 380 | 9.5 |
| 698 | 153.2 | 95.3 | 64 | 28 | 25.4 | 41.3 | 32 | 620 | 17 |
| 998 | 229.4 | 95.3 | 67.5 | 28 | 25.4 | 41.3 | 32 | 620 | 14.8 |
| 9118 | 229.4 | 123.8 | 76.2 | 35 | 33.5 | 52 | 38.1 | 886 | 24.2 |
| S348 | 76.6 | 38.9 | 28.6 | 12.7 | 12.7 | 20.6 | 13.5 | 130 | 3.2 |
| S458 | 102.4 | 52.1 | 35 | 16 | 16 | 26.5 | 17.5 | 245 | 5.2 |
| S678 | 153.2 | 69.8 | 50.8 | 22.2 | 21 | 34.2 | 25 | 380 | 9.5 |
| S698 | 153.2 | 73 | 68.3 | 28 | 25.4 | 41.3 | 32 | 620 | 17 |
| S9118 | 229.4 | 98.4 | 77.8 | 35 | 33.5 | 52 | 38.1 | 886 | 24.2 |
| P100 | 100 | 57 | 37 | 16 | 16 | 26.5 | 17.5 | 245 | 5.2 |
| P160 | 160 | 78 | 54 | 24 | 20.5 | 36 | 28 | 372 | 10.3 |
Advanced Technical Features
Heat-Treated Alloy Steel Construction: Every link and pin is drop-forged from AISI 4140 / 40Cr steel and quenched-and-tempered as a matched set, giving the 698HT forged rivetless chain a controlled hardness that resists both wear and brittle fracture.
Rivetless Bar-Loop Architecture: Sidebars lock around a reversible T-head pin, so a single damaged link is swapped in minutes on site - zero riveting tools, zero full-loop removal.
Exceptional Fatigue & Shock Resistance: Continuous grain flow from drop forging, plus the HT heat-treatment grade, lets the chain absorb impact loading from jammed carriers and uneven feed without stress-cracking.
Corrosion & Abrasion Resilience: Engineered for sugar juice, bagasse fibres and wet slurry; optional shot peening and epoxy finishes extend service life in the most aggressive process zones.
Full Interchangeability: Same pitch, pin and sidebar geometry as the 698 and 698H series, so the 698HT drops onto existing sprockets, trolleys and attachments without re-tooling your conveyor.
Technical Specifications
| Model Number | 698HT / X698 Series |
|---|---|
| Nominal Pitch | 6.031 inches (153.2 mm) |
| Material Grade | Alloy Steel (40Cr / 20CrMnTi) |
| Average Breaking Load | 85,000 lbs / 385 kN |
| Heat Treatment | Induction Hardened (HRC 40-45) |
| Surface Treatment | Oil Dipped / Shot Blasting / Custom Painting |
| Estimated Weight | 3.4 lbs/ft (5.1 kg/m) |
Why Choose Our 698HT Forged Chain?
Drop Forged Precision
Advanced grain structure through precision drop forging ensures zero internal defects and extreme fatigue resistance.
High Temperature Stability
The "HT" designation ensures the chain maintains its structural integrity even in high-heat paint ovens or curing systems.
Easy Maintenance
The rivetless design allows for manual assembly and disassembly without tools, significantly reducing factory downtime.
Global Compatibility
Fully interchangeable with standard X698 conveyor components from major international brands.
Engineering Selection & Environmental Suitability
Engineering Selection Advice
The 698HT is the heavy-duty workhorse of the forged rivetless family. Hangzhou Ocean Industry recommends it for conveyor runs where single-point loads exceed what an X348 / X458 class chain can carry safely, or where the material is abrasive and wet - classic sugar-mill carrier, feed, discharge and return loops. For lines above 300 meters or with steep incline lifts, our engineers size the chain, sprocket count and drive torque from your layout so pitch accuracy and tension stay within design limits.
Applicable Environmental Conditions
Thermal Range: Continuous duty from -20°C to +260°C, suitable for both ambient mill floors and heat-affected discharge zones.
Atmospheric Resistance: Highly resistant to acidic sugar juice, alkaline wash-down and bagasse abrasion; epoxy finish available for the most corrosive tunnels.
Loading Dynamics: Built for high-cycle, shock-loaded operation where consistent pitch is required to sync with drives, feeders and automatic discharge.
Industrial Applications
Automotive Industry: Body shop conveyors, paint lines, and final assembly.
Food Processing: Poultry slaughtering and heavy-duty trolley systems.
Steel & Mining: Heavy material transport in abrasive environments.
Logistics: Sorting systems and warehouse overhead conveyors.
Installation & Working Principle
Working Principle
The 698HT forged rivetless chain operates as a continuous mechanical loop. Sidebars interlock around the T-head pins, which act as pivots for both horizontal and vertical articulation. In a typical overhead or floor conveyor, the chain is carried by trolleys that ride an I-beam rail; workpieces or scraper bars attach to forged hangers. The drive unit engages the sidebars and propels the assembly through the processing zones, with the rivetless geometry allowing the loop to flex through turns without a fixed pivot every pitch.
Installation Best Practices
Initial Slack Adjustment: Before applying drive tension, confirm each link is correctly nested so the loop seats without binding or climbing the sprocket.
Sprocket Synchronization: Align drive and tail sprockets precisely with the I-beam; misalignment makes the heavy chain ride the tooth flanks and accelerates wear.
Lubrication Points: Grease the articulating pins at the joints per the duty cycle - in sugar-juice zones, use a food-grade or sealed option to avoid wash-off and contamination.
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