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A double diamond reinforced skidder chain with U-Grip I-Bar studs that delivers maximum biting traction and impact resistance on rugged steep forest terrain — built for heavy skidders, feller bunchers and high-tonnage logging machinery that need extreme heavy-duty off-road performance, not just standard forest road traction.
The NLU series double diamond skidder chain pairs a double diamond reinforced mesh framework with I-Bar studs engineered with U-Grip traction geometry, giving the unit extreme heavy-duty biting grip and superior impact resistance in addition to exceptional wear performance on rugged off-road terrain. Available in NLU-16, NLU-18 and NLU-20 series, covering tire specifications from NLU23525-16 up to NLU35532-20 with per-pair weights ranging from 520 kg to 1019 kg, it's built for skidders, feller bunchers and heavy logging machinery that need maximum traction on steep, muddy and rough forest terrain, not just standard maintained forest road travel.
It shares the universal fitting design and hub protection features of standard forestry tire chains, but adds perfectly hardened all-link construction and U-Grip I-Bar studs for dramatically upgraded traction capacity and service durability — see the specification table above to confirm which model fits your skidder equipment.
It adopts a double diamond reinforced mesh structure paired with I-Bar traction studs featuring U-Grip design, which greatly improves biting grip. It delivers powerful and stable traction on muddy, steep and slippery forest terrain.
All chain links undergo precision hardening treatment, significantly enhancing overall tensile strength and wear resistance. With excellent impact and fracture resistance, it withstands heavy loads and terrain impacts for extended service life.
The studded reinforced structure is purpose-built for extreme heavy-duty off-road scenarios. It is compatible with heavy forestry equipment such as skidders and feller bunchers, and handles continuous high-intensity operations on steep slopes, rugged mountain roads and muddy forest areas.
It covers 3 major series: NLU-16, NLU-18 and NLU-20, fitting tire sizes from NLU235*25-16 to NLU355*32-20 with per-pair weight ranging from 520 kg to 1019 kg, matching skidders and heavy forestry vehicles of different tonnages.
Not every forestry operation requires studded heavy-duty traction or diamond-reinforced build. Where a vehicle travels on maintained forest roads with standard loads — general logging trucks, light utility tractors — a basic mesh forestry chain does the job at lower cost and with lighter weight than a studded skidder chain. The NLU Series is purpose-built for exactly the opposite: maximum biting grip and fully hardened strength for steep-slope skidding and extreme heavy off-road logging operations.
Which NLU series model fits your job? If you run small to mid-size skidders and feller bunchers for light to medium logging work, the NLU-16 series (520 kg – 700 kg per pair) fits tire sizes from NLU23525-16 up to NLU35/65-16, delivering dependable double diamond U-Grip traction for standard forestry tasks.
If you operate standard mid-size skidders for regular full-time forest harvesting, the NLU-18 series covers tire sizes from NLU24532-18 up to NLU35/65-18, with per-pair weight from 774 kg to 960 kg, striking the optimal balance of studded grip strength and durability for daily skidding operations.
If you deploy large heavy-duty skidders for extreme steep-slope and high-load logging operations, the NLU-20 series (883 kg – 1019 kg per pair) fits oversized heavy skidder tires, delivering maximum I-Bar U-Grip biting traction and fully hardened link strength for the most demanding off-road forest environments.
Compare: Standard Forestry Mesh Chain Compare: Double Diamond Straight Nail Feller Chain
| ITEM NO | TIRE SIZE | WEIGHT/Pair(kg) |
| NLU-16 | NLU235*25-16 | 520 |
| NLU245*32-16 | 571 | |
| NLU265*25-16 | 605 | |
| NLU295*25-16 | 626 | |
| NLU305*32-16 | 625 | |
| NLU35/65-16 | 700 | |
| NLU-18 | NLU245*32-18 | 774 |
| NLU265*25-18 | 823 | |
| NLU295*25-18 | 852 | |
| NLU73*44*32-18 | 896 | |
| NLU355*32-18 | 905 | |
| NLU35/65-18 | 960 | |
| NLU-20 | NLU245*32-20 | 883 |
| NLU305*32-20 | 966 | |
| NLU355*32-20 | 1019 |
If your vehicles only operate on maintained forest roads with standard loads, a basic mesh forestry chain is the simpler, more economical choice.
Choose from NLU-16 up to NLU-20 based on your exact tire dimensions and equipment tonnage, plus proper fitting tolerance.
Confirm the chain's per-pair weight (520 kg – 1019 kg) and load capacity match your skidder's axle load and working terrain before ordering.
Select fully hardened I-Bar studded construction to match your slope steepness and heavy skidding operation intensity.
Double Diamond Reinforced Mesh for Enhanced Structural Stability
U-Grip I-Bar Stud Design for Powerful Biting Traction
Fully Hardened All-Link Construction for Superior Wear & Breakage Resistance
Studded Reinforced Structure for Extreme Heavy Off-Road Conditions
Three Graduated Series for Multi-Tonnage Forestry Equipment
Full Size Coverage with Wide Load Capacity Range
From what working scenarios can the NLU skidder chain work?
It delivers heavy-duty traction and driving stability for extreme forestry operations — steep-slope skidding, mountain timber harvesting, off-road log hauling, and service on muddy, rutted and slippery forest terrain, when fitted to skidders, feller bunchers and heavy logging carriers.
What series and weight ranges does it come in?
The NLU lineup includes three major series: NLU-16, NLU-18 and NLU-20, fitting tire sizes from NLU23525-16 to NLU35532-20, with per-pair weights spanning 520 kg to 1019 kg.
How does the Double Diamond U-Grip I-Bar structure deliver superior performance?
The double diamond mesh framework evenly distributes load stress for higher structural rigidity and deformation resistance. U-Grip I-Bar studs maximize ground bite and contact area, delivering aggressive traction on loose, steep and slippery surfaces.
What durability treatment is applied to the chain?
Every chain link receives precision through-hardening treatment, greatly improving overall hardness and tensile strength. It provides exceptional impact and abrasion resistance, drastically extending service life in harsh off-road working conditions.
What type of equipment and operations is it designed for?
It features a studded heavy-duty construction purpose-built for extreme heavy off-road uses, compatible with skidders, feller bunchers and high-tonnage logging machinery for continuous high-intensity forest harvesting operations.
Tell us your capacity, lifting height, and working‑condition requirements — we'll confirm the correct model and send pricing.
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Dele electrical(HANGZHOU) co.,ltd
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