
YY53
48mm- Weight band 40–120 kg
- Backrest 70–115°
- Seat weight 18 kg
KL Seating builds suspension seats for forklifts, construction machinery and tractors. Eight models publish a suspension travel figure, from 40 mm to 180 mm. Mechanical suspension covers the shorter travels and air suspension covers 80 mm and 180 mm on a 24 V supply. The range sits on one travel scale below, with the operator weight band and the machine-side requirement of each model next to it.
YQ50 is not on the scale: air bag is marked on its drawing, with no travel figure. KL11 and YY03 publish no travel figure.
KL Seating is a suspension seat manufacturer and supplier to machine builders who fit a seat into a cab design, and to distributors and importers who stock replacement seats for forklifts, excavators, loaders and tractors. The suspension range has two lines. Mechanical models run from 48 mm to 70 mm of travel. Air bag models run at 80 mm and 180 mm and take a 24 V supply.
Pick the travel your cab allows, check the operator weight band, and confirm whether your machine has 24 V at the seat. Those three figures select the model. Send them to us together with a photo of the seat you are replacing, and we reply with the model that fits and the figures the factory still has to confirm.
Each model below carries one published travel figure, listed in order of travel. The operator weight band comes from the parameter sheet. Model pages and series pages carry the full data.
Travel gate
Eight models publish travel: 40 mm to 180 mm.
| Travel | Model | Suspension | Operator weight | Series |
|---|---|---|---|---|
| 40–110 mm | YS15 | type not published | 50–130 kg | construction machinery |
| 40–110 mm | YS2-8 | type not published | 50–120 kg | construction machinery |
| 48 mm | YY53 | mechanical | 40–120 kg | forklift |
| 50 mm | KL01 | mechanical | 50–130 kg | forklift |
| 70 mm | YL02 | mechanical | 50–130 kg | construction machinery |
| 80 mm | YJ03 | air bag, 24 V pump motor | 50–130 kg | tractor |
| 80 mm | YY08 | type not published | 50–120 kg | tractor |
| 180 mm | KL03 | air, 24 V | confirmed by factory | tractor |
Two more forklift models belong to the mechanical line without a published travel figure. KL11 is a mechanical suspension seat with a 50–130 kg weight band, and YY03 offers suspension as an option with a 40–120 kg band. We do not print a travel figure for either, so send the travel you need and we confirm against the factory data.
The YQ50 drawing marks air bag suspension together with 60 mm of seat height adjustment. The drawing carries no travel figure and no supply voltage, so YQ50 is not on the scale.
Model pages: KL01 forklift seat · YL02 construction machinery seat · YJ03 air suspension tractor seat · YS15 excavator seat
Travel is the vertical movement of the seat on its suspension, so the cab has to give that movement room. The scale spans a wide range. KL03 at 180 mm moves 132 mm more than YY53 at 48 mm, nearly four times the travel. At the short end, YY53 and KL01 differ by 2 mm, which is why the choice between those two is made on other data.
A selection with us runs in four steps:
You give the machine type and the cab or platform it sits in.
You give the travel of the seat now fitted, or the travel your cab design allows.
Step two sets the line:
For the 40–110 mm models YS15 and YS2-8, the travel is published as a range. Tell us the working value your cab needs and we confirm which setting applies.
You give the free space under the cushion and around the seat base.
Step three is the measurement buyers skip. A seat with a different travel changes how the operator sits in relation to the steering wheel, pedals and roof. Measure the old seat’s travel and the free space beneath the cushion before an order. With both figures, the model choice takes one reply.
We answer with the model and say which figures come from the parameter sheet.

A suspension seat is set for the person who sits on it, so the weight band is the second figure on the sheet. The published bands fall into three groups.
The lowest published band, 40 kg, belongs to YY53 and YY03 on the forklift line.
The 130 kg ceiling belongs to KL01, KL11, YL02, YJ03 and YS15. YY53, YY08 and YS2-8 stop at 120 kg.
A fleet with operators at both ends of the range names a model from the 50–130 kg group in the first message, or asks us about KL03.
Two models share 80 mm of travel and differ here. YJ03 covers 50–130 kg and YY08 covers 50–120 kg. Two models share the 40–110 mm range and differ by the same 10 kg: YS15 reaches 130 kg and YS2-8 stops at 120 kg.
KL03 has no published weight band. The factory confirms it when you enquire, so send the operator weight range with the machine details.
The mechanical line holds the three shortest published travels on the scale. YY53 and KL01 are forklift seats. YL02 is built for construction machinery and heavy equipment. KL11 completes the line as a forklift seat without a published travel figure.



The shock absorber of each mechanical model goes through mechanical analysis in our testing center, and the result is used to confirm that travel and weight band belong together. The series pages carry the full parameters: forklift seats and construction machinery seats. The range overview is on mechanical suspension seats.
Two models use air suspension, and both are tractor seats. YJ03 has an air bag suspension with 80 mm of travel and a weight band of 50–130 kg. KL03 has air suspension with 180 mm of travel, the longest published on this site. KL03 is listed in the parameter sheet for tractors, construction machines and agricultural machinery.

YJ03 comes with an external drawing, and the drawing marks the air pump motor as 24 V. Weight band 50–130 kg. Backrest range runs 35–170° and fore-aft travel 175 mm.

KL03 runs on 24 V as well, and its details come from the factory because no drawing is on file. Weight band confirmed by factory.
The YQ50 construction machinery seat is marked with air bag suspension on its drawing, together with 60 mm of seat height adjustment. We read this as the drawing’s statement and give the voltage question to the factory.
YQ50 · not on the scaleFor the model detail see YJ03 air suspension tractor seat and tractor seats. The range overview is on air suspension seats.

The power supply belongs to the machine. It cannot be changed from the seat side, so this check comes before the model choice for YJ03 and KL03.
We reply with the model that fits. Where the machine has no 24 V supply, the mechanical line above is the route.
Figures such as pump current and connector type are not on the published sheet. We do not print them. The factory answers each point against the electrical details you send.

Three questions put a machine on the right line. They follow the order a buyer works through.
Fix the travel the cab design allows, then the supply at the seat, then the weight range of the operators. The three figures go into the seat interface specification and we confirm the model against it. Structure changes go to the research center.
Read the travel on the seat being replaced, check the voltage on the machine, and send a photo. The answer names the model and says which figures are still open.
| Question | Mechanical line | Air line |
|---|---|---|
| Supply at the seat | none listed | 24 V |
| Published travel | 48 mm, 50 mm, 70 mm | 80 mm, 180 mm |
| Weight band | 40–130 kg | 50–130 kg (YJ03), factory confirms (KL03) |
| Models | ![]() ![]() YY53, KL01, KL11, YL02 | ![]() YJ03, KL03 |
The 40–110 mm models YS15 and YS2-8 and the 80 mm model YY08 sit outside the table, because the suspension type is not published for them. The next section covers them.
Ready to compare? Send the travel, the weight range and the voltage, and we reply with the model.
Email the three figuresThree models publish a travel figure and no suspension type. We list them by travel and do not name the type.
YY08 · 80 mm
YS15 · 40–110 mm
YS2-8 · 40–110 mmFor these three models the parameter sheet is the source and the buyer reads the travel from it. The drawings for YS15 and YS2-8 carry some values that differ from the sheet. The sheet is the reference when we send a drawing, and the factory confirms any figure that appears in both.
If your machine needs the suspension type fixed before design freeze, ask for the factory confirmation in your first message. Model YQ40 is listed on YQ40 heavy machinery seat and has no suspension figures.
All suspension seats are built in our own plant. Seat cushions and backrests are foam molded, seat frames and bases are precision stamped, frames are welded in the robotic welding station, and the suspension, slide rails and chosen options are fitted at assembly.
CAE structural analysis of the seat frame at design stage.
3D scanning of the base holes and frame outline, with the result returned to the buyer against the parameter sheet.
Pressure distribution testing of the seat cushion.
Mechanical analysis of the shock absorber on mechanical suspension models, used to confirm that travel and operator weight band belong together.

These checks run in a testing center of 300+ m² with 20+ devices and 30+ test items. The MES covers research, purchasing, production, quality inspection, warehousing and delivery, so a suspension seat follows the same record chain as every other seat we build.
Pass thresholds and sampling rates: not published.
Machine builders and distributors buy suspension seats in different ways, and the supply side covers both.
Detail on both programs is on OEM and ODM seat manufacturer. Mounting and compatibility data are on seat fitment and compatibility.



The documents we send on request.
Where a drawing and a sheet differ, the sheet is the reference and we say so in the reply.
Parameter sheets for every model, with:
External drawings where on file:
YL02 and KL03 have no drawing on file.
Certificates as copies:
Other certificates held include environmental, occupational health and safety and energy management systems.


Each family has a series page and the models with a model page of their own.




Construction machinery seats cover YL02, YQ40, YQ50, YS2-8 and YS15.
The range overview for each suspension line.
Send these items in the first message and the model choice takes one reply.
We reply with the model, the figures that come from the parameter sheet, and the figures the factory is still to confirm. For OEM and ODM projects, state the program in the first line and add the drawing.
Send your travel, weight range and voltage to [email protected], and we reply with the matching model.
We reply with the matching model, the figures from the parameter sheet and the figures the factory still has to confirm.
Send the travel, the operator weight range and the supply voltage of your machine, with a photo of the seat, to [email protected], or call +86 177 0272 7677. For related pages see contact.
