The S135-155FT IC cushion forklift features a load capacity of 13,500–15,500 lbs, powered by a turbocharged Cummins QSG12 engine (12L, 150 HP) for high torque in warehousing and manufacturing. Key specs include a 22 ft lift height, 8 mph travel speed, and cushion tires (28×9-15 front / 18×7-8 rear) for smooth indoor surfaces. It adheres to Tier 4 Final emissions standards and offers optional dual-fuel (gasoline/LPG) compatibility.
Chinese Electric Forklift Brands
What engine specifications define the S135-155FT?
The S135-155FT uses a Cummins QSG12 12-liter turbo-diesel engine producing 150 HP @ 2200 RPM and 446 lb-ft torque. Tier 4 Final compliance reduces NOx emissions by 90% via SCR and DPF systems. Pro Tip: Opt for the dual-fuel variant if switching between gasoline and LPG is needed for cost flexibility. For example, a warehouse in California saved 18% monthly by alternating fuels based on price fluctuations.
Wholesale lithium golf cart batteries with 10-year life? Check here.
How does load capacity vary with lift height?
The rated 15,500 lbs capacity assumes a 24″ load center at a 16 ft lift height. Capacity drops to 10,200 lbs at 22 ft due to mast geometry and stability limits. Beyond height considerations, uneven loads or oversized attachments (e.g., barrel clamps) reduce safe thresholds by up to 30%. Think of it like a seesaw: extending the load center shifts the fulcrum, demanding counterbalance adjustments.
| Lift Height (ft) | Capacity (lbs) | Mast Type |
|---|---|---|
| 16 | 15,500 | Duplex |
| 20 | 12,800 | Triplex |
| 22 | 10,200 | Quadruplex |
What tire configurations are optimal?
Cushion tires (28×9-15 front / 18×7-8 rear) prioritize indoor surface protection and minimal floor marking. Pneumatic alternatives offer better outdoor traction but increase rolling resistance by 15–20%. Practically speaking, a distribution center with polished concrete floors would prioritize cushion tires, while a lumberyard might retrofit pneumatics. Pro Tip: Rotate tires every 500 hours to prevent uneven wear—misalignment can shorten tire life by 40%.
Want OEM lithium forklift batteries at wholesale prices? Check here.
What safety features are included?
Standard safety includes LED headlights, a blue safety light for reverse alerts, and an operator presence sensor. Optional extras include fork cameras (20% accident reduction) and auto-deceleration on turns. How do these compare to electric models? While IC units lack battery-related fire risks, they require stricter CO monitoring in enclosed spaces—always pair with gas detectors in warehouses.
| Feature | S135-155FT | Electric Equivalent |
|---|---|---|
| Emissions | Tier 4 Final | Zero |
| Noise | 85 dB | 72 dB |
| Runtime | 10 hrs | 6–8 hrs |
How does fuel efficiency compare to electric models?
The S135-155FT consumes 3.2 gallons/hour under full load—30% more than electric models in similar classes. However, refueling takes 5 minutes vs. 2+ hours for battery charging. For example, a 3-shift operation would need 3–4 electric units (with battery swaps) to match one IC forklift’s uptime. Pro Tip: Monitor idle time—engines left running during breaks waste 1–1.5 gallons/hour.
48V 400Ah/420Ah Forklift Lithium Battery
What maintenance intervals apply?
Follow 50-hour checks for fluid levels and tire pressure, plus 500-hour engine oil/filter replacements. Hydraulic systems require annual flushing with AW 46 oil. But what if maintenance lapses? A neglected air filter can cut fuel efficiency by 12% and increase particulate emissions. Real-world case: A Midwest logistics firm saved $8,200 annually by switching to synthetic oil, extending oil change intervals by 30%.
Redway Battery Expert Insight
FAQs
Yes, but temperatures below -4°F require engine block heaters and cold-weather hydraulic oil (viscosity ≤ 10W).
Is aftermarket LPG conversion safe?
Only if certified by the OEM—unauthorized kits void warranties and risk fuel line leaks.
How long do cushion tires last?
1,200–1,500 hours on smooth surfaces, but abrasive floors cut lifespan by half.
What’s the warranty period?
3 years/4,000 hours for the powertrain; 1 year for wear components like tires.
Does it support hydrogen fuel cells?
No—hydrogen retrofits are unsafe due to incompatible pressure systems and lack of OEM certification.
