| Model : CPDY-40 | |
| rated loading | 4000KG |
| overall weight | 5300KG |
| Fork Length | 1.22m |
| maximum traction force | 50KN |
| maximum breakout force | 140KN |
| maximum grade ability | 30° |
| maximum dump height | 4000mm |
| overall dimension (L×W×H) | 5600*2000*2800mm |
| minimum turning radius | 3000mm |
| Engine Model | ZY4102 |
| type | Vertical, in-line, water cooled, 4-stroke diesel engine |
| NO. of cylinder-bore*stroke | 4-102*100 |
| rated power | 78kw—1450r/min |
| torque converter | ZY280 |
| gearbox mode | Power shaft normally engaged straight gear |
| gears | 2 forward & 2 reverse |
| maximum speed | 30km/h |
| main reducing spiral | bevel gear grade 1 reduction |
| decelerating mode | Planetary reduction grade 1 |
| wheel base (mm) | 2300mm |
| wheel tread | 2000mm |
| ground clearance | 300mm |
| system working pressure | 16.5MPa |
| boom lifting time | 4.83S |
| total time | 9.15±0.5s |
| service brake | air assist disc brake on 4 wheels |
| parking brake | Manual disk brake |
| type specification | 1670-20 |
| front tyre pressure | 0.35Mpa |
| rear tyre pressure | 0.35Mpa |


Built for ground that will not take a hard-tyre truck, this is a 4-ton diesel rough terrain forklift truck for yards, depots and site compounds. The CPDY-40 lifts and carries palletised and unpackaged loads over gravel, compacted dirt, broken concrete and sloped access roads, and it travels between storage areas under its own power instead of being trailered across site. Operators work it the way they work a counterbalance truck - approach the stack, lift, travel, place - but on surfaces where a warehouse machine would dig in or lose grip. Yards that keep one machine for both loading and yard work, and rental fleets that send equipment to mixed sites, are the primary buyers for this model.
The ZY4102 is a vertical, in-line, water-cooled four-stroke diesel with four cylinders on a 102 × 100 mm bore and stroke, rated at 78 kW at 1,450 r/min. Power reaches the wheels through a ZY280 torque converter and a straight-gear gearbox with two forward and two reverse speeds, giving a top travel speed of 30 km/h. A spiral bevel main reduction works with planetary hubs at the wheels, which keeps torque high at low speed - useful when a load has to be inched into position. Braking is air-assisted discs on all four wheels, backed by a manual disc parking brake. As a rough terrain forklift manufacturer, we match engine, converter and final drive to the machine's weight and tyre size rather than treating the drivetrain as a generic package.
We supply material handling equipment as a complete range rather than a single machine: electric pallet trucks and stand-on stackers for warehouse and dock work, and diesel and rough-terrain forklifts for heavier outdoor duties, covering roughly 1.5T to 5T. That breadth lets fleet buyers standardise on one supplier across indoor and outdoor sites and match each job to the right power type and capacity. Tell us your load, terrain and duty cycle, and we will help you select the correct model from the range.
The difference is where it can work. This rough terrain forklift runs pneumatic tyres on a wide track with generous ground clearance, so it keeps traction and stability on gravel, compacted dirt and broken concrete, and it climbs the gradients that stop a hard-tyre truck. It also travels between yards under its own power. The lifting job is the same, but the surface no longer decides whether the machine can do it.
This model runs pneumatic tyres with a knobby tread, which is what keeps grip on loose and uneven surfaces. The size and inflation figures are listed in the specification table; what matters is matching them to the ground you actually work on. If most of your work is on hard standing, tell us before the order, because tyre setup affects traction, ride and stability.
This one is an outdoor machine. Diesel power suits yards, sites and long shifts away from a charging point, but engine exhaust is not what you want inside a closed warehouse or a food-grade building. If part of your work is indoors, say so - our electric forklift and warehouse handling range covers that side, and many sites run both types together.
A short walk-round covers most of it: hydraulic oil level, lift chain tension and lubrication, tyre condition and pressure, brake feel, and that the forks and load backrest are undamaged. The chains run exposed on the mast, so they can be inspected rather than guessed at. The operation manual lists the full pre-start routine, and our team can help you set an interval that fits your duty cycle.
Rated capacity is quoted at a standard load centre. Fit longer forks, a jib or a clamp and the load centre moves further out, so the safe weight on the forks drops - that is normal for any counterbalance machine, not a limitation of this one. Tell us what you plan to handle with, and we will confirm the working capacity for that setup.
We build it at our own plant and support it ourselves. As rough terrain forklift manufacturers we can talk you through the drivetrain, the daily checks and the wear parts worth keeping on the shelf for your duty cycle. Operation manuals and technical support come with the machine, so your workshop is not starting from zero.