KL Seating makes and supplies mechanical suspension seats. Buyers are forklift and construction machinery builders designing a new operator station, and distributors and importers replacing seats on machines already working.
The mechanical line has four models. YY53 has 48 mm of suspension travel, KL01 has 50 mm and YL02 has 70 mm. KL11 is a mechanical suspension seat whose travel figure the factory gives on enquiry.
Tell us three things:
The travel your cab can take
The weights of your operators
Photos of the seat position
The reply names a model, separates sheet figures from open ones and marks what the factory must still check. For the data first, go to the model cards below.
4mechanical suspension models: YY53 at 48 mm, KL01 at 50 mm, YL02 at 70 mm, and KL11
40–120 kgto 50–130 kg weight bands
500,000seats each year, with foam molding, precision stamping and robotic welding in house
ISO 9001:2015CE, RoHS and REACH
OEM / ODMfor builders, plus wholesale and private label supply for distributors
Parameter sheet
Mechanical Suspension Seat Range: Four Models Side by Side
Each model has a page of its own with the full data. Pull a card to read what the sheet publishes for that model: three forklift models and one construction machinery model.
The table uses only the parameter sheet. A cell that says “confirmed with the factory” is answered in the enquiry reply and is not printed here.
Card pulled: KL01. Suspension travel: 50 mm. Operator weight setting: 50–130 kg.
KL11from the factoryforklift seat, mechanical suspension; no travel figure is published
Travel is how far the seat moves up and down on its suspension; the cab must leave that much room. The mechanical line publishes three values, in order: YY53 at 48 mm, KL01 at 50 mm and YL02 at 70 mm. KL11 publishes no travel figure, and we do not print one.
For a forklift, the choice between YY53 and KL01 is made on the other columns of the table: weight band, backrest range and slide. For a construction machine whose present seat travels 70 mm, YL02 is the mechanical model on the sheet. For KL11, send the travel you need and the factory confirms against its own data before the model is fixed.
A selection runs in four steps:
Machine type, and the cab or platform that carries the seat.
The travel of the seat fitted today, or the travel your cab design can take.
The free space under the cushion and around the seat base.
Our answer: a model, with the sheet figures marked as such.
Measure the old seat’s travel and the free height beneath the cushion before an enquiry. A seat that travels differently moves the operator relative to steering wheel, pedals and overhead guard, so these two figures settle most in the first message.
Operator weight
Operator Weight Bands on the Mechanical Line: 40–120 kg and 50–130 kg
A mechanical suspension seat is set for the person who sits on it, so the weight band is part of every selection. The sheet publishes two bands across the four models.
40–120kgYY53
50–130kgKL01KL11YL02
Lower weight range
YY53 publishes the 40 kg lower end on the mechanical line.
Upper weight range
KL01, KL11 and YL02 publish the 130 kg upper end.
Mixed fleets
A fleet with operators at both ends names the lightest and the heaviest operator in the first message, and the reply names the model whose band covers them.
Seat position
Fore-Aft Slide and Backrest Range of Each Mechanical Model
Seat position adjustments decide whether the operator reaches the controls from the seat setting the cab was designed around. The four models publish different parts of this data.
Give the forward and rearward reach your cab layout needs, and the reply states what the factory holds for the open items.
KL01
Fore-aft slide160 mm, split 80 mm forward and 80 mm rearward.
BackrestFrom 15° to 130°.
KL11
Fore-aft slide176 mm, split 80 mm forward and 96 mm rearward.
Backrestconfirmed with the factory.
YY53
Fore-aft slideconfirmed with the factory.
BackrestFrom 70° to 115°.
YL02
No product photo on file
Fore-aft slide190 mm in steps of 10 mm.
Backrestconfirmed with the factory.
Mounting
Base Holes and Mounting: KL01 and YL02 Spacings, KL11 and YY53 Requests
The seat base has to meet the holes on your platform. The sheet publishes base hole data for two of the four models.
Base hole data on the parameter sheet
Model
Base holes
YL02
230, 285 and 330 mm
KL01
285 and 330 mm are the common spacings
KL11 and YY53
Not on the sheet. Ask the factory, and send your seat base measurements with the request.
Three inputs from you
Hole positions on your seat base, from a measurement or the cab drawing.
Footprint of the old seat when you replace one.
A photo of the rails or frame under the seat.
Our testing center runs a 3D scan that sets your hole positions and frame outline against the model; the result comes back to you next to the parameter sheet. Where your pattern does not match, the factory names the modification that closes the gap, and structure changes are passed to the research center.
3D scan of base holes and frame outlineSample seat baseSample frame, rear
Open items
Items Requested From the Factory: Figures Outside the Published Sheets
Some figures sit outside the parameter sheets. Ask for them in the first message and the reply holds no surprise.
KL11 suspension travel
Not published. The factory gives it against the travel you need.
YY53 slide and base holes
Not on the sheet, confirmed with your seat base measurements.
KL11 backrest and base holes
Confirmed in the reply.
YL02 backrest and options
The sheet does not list them, so they are answered per enquiry.
Electronic lock connection
The electronic lock is an option on KL01 and YY53. The connection is confirmed with the electrical details you send.
Drawings
No external drawing is on file for YL02. For the other three models the reply states whether a drawing exists.
Put these items into the first message and the reply closes the open points in one round.
Testing
Shock Absorber Mechanical Analysis: The Check Behind Mechanical Suspension
Among the checks in our testing center, the shock absorber mechanical analysis is the one that belongs to mechanical suspension. It applies to the three forklift models, KL01, KL11 and YY53. The object tested is the shock absorber unit of the mechanical suspension, and the result is used to confirm that the model’s travel and operator weight band belong together. YL02 lists the same analysis on its model page.
What the buyer can ask for on this item:
Which models the analysis covers: KL01, KL11 and YY53 on the forklift line.
The parameter sheet that states the travel and weight band the analysis is read against.
No test values, no service life figures and no vibration data are published on this page.
Schematic · not to scale · no values are published here
Production
Mechanical Suspension Seat Production Route and Testing
Our plant covers 35,000 m² and employs 180+ people; mechanical suspension seats are made there start to finish, in four steps:
Foam molding forms the cushion and the backrest.
Precision stamping makes the frames and base parts.
Robotic welding joins the frame.
Assembly fits the suspension, slide rails and the options you picked.
One MES runs purchasing, research, production, warehousing, quality inspection and delivery, and every mechanical suspension seat is recorded along that chain. Visits to the plant are arranged by appointment.
CAE structural analysisThe frame is analyzed while it is still a design.3D scanningBase holes and frame outline are measured.Pressure distributionA seated person loads the cushion and the test records where the pressure goes.Shock absorber analysisRun in the testing center of 300+ m², 20+ devices and 30+ test items, on the mechanical suspension models.
Machine builders
Mechanical Suspension Seats for Forklift and Construction Machinery Builders
The seat is designed into the operator station, so the specification carries three suspension items next to the mounting data.
Travel
Stroke the cab design can take: YY53 48 mm, KL01 50 mm, YL02 70 mm, and for KL11 the figure the factory gives.
Operator range
The weights of the lightest and the heaviest operator the machine is specified for.
Seat position range
Forward and rearward reach, plus the backrest range the cab layout needs.
What to send in the first message:
Machine type and the work it does.
A drawing of the cab or platform around the seat, showing free height and room behind it.
Operator weights from lightest to heaviest.
Hole positions on the seat base.
Options wanted, from the table above.
Cover material, PVC or fabric, and its color.
The answer names the model, quotes the sheet figures and lists what the factory still confirms; structure changes are handled by the research center.
Distributors and importers
Mechanical Suspension Seats for Distributors and Importers
Distributors and importers start from a machine in the workshop or a seat in the field, and the enquiry set follows that path:
Machine make and model, forklift or construction machine.
The old seat photographed from the front, from the side and from underneath.
Dimensions of the old seat, its base holes and its suspension travel.
Weight range of the operators in the fleet you supply.
Options and cover you need.
A mixed fleet gets one set for each machine type, and each machine receives its own reply with the model and the open figures marked. Full model lists sit on two series pages: forklift seats and construction machinery seats. Wholesale and private label supply is settled on the same sheet as model and options.
Mechanical and Air Suspension Seats: Where the Air Models Sit
Two models in the range use air suspension, and both are tractor seats: YJ03 at 80 mm and KL03 at 180 mm. They are not part of this page. The table shows how the two lines read on our published material.
Mechanical line and air line compared on published material
Item
Mechanical line
Air line
Models
YY53, KL01, KL11, YL02
YJ03, KL03
Published travel
48 mm, 50 mm, 70 mm; KL11 from the factory
80 mm, 180 mm
Supply figure on the published material
none listed
24 V for both models
Series
forklift, construction machinery
tractor
The forklift line carries no air suspension model. A machine that has a 24 V supply at the seat position and needs an air model is answered on air suspension seats.
Every published travel figure, mechanical and air, sits on one scale on the suspension seats page.
Outside the line
Forklift Models Outside the Mechanical Line: YY03 With Optional Suspension
YY03
Suspension listed as an option
Operator weight setting 40–120 kg
Fore-aft slide 150 mm
YY03 is a forklift seat whose sheet lists suspension as an option. The sheet publishes no travel figure for YY03, so it is not counted as a mechanical model on this page. Ask for the suspension configuration of YY03 in the first message and the reply states what the factory fits.
Other seats on our sheets publish a travel figure without naming a suspension type. We do not place those under mechanical or air suspension on this page. YL01 and YY01 publish no suspension travel, so nothing is stated about their suspension here.
OEM and ODM for Mechanical Suspension Seats: How Supply Works
Machine builders can order mechanical suspension seats under the OEM and ODM program, which produces customized and modular seat systems across the whole product line. A mechanical model goes through the same file as any other model.
Machine builders
What goes inYour cab drawing, the travel and weight range of the design, the hole pattern, plus options and cover.
What comes backThe model is fixed against your drawing and mounting pattern; anything structural is passed to the research center.
Distributors and importers
What goes inWholesale and private label. A series ships as one set covering the models you stock, with your brand on the seat.
What comes backBulk supply is arranged by series.
Both programs are described in full on the OEM and ODM seat manufacturer page.
Send Travel, Weight Range and Seat Photos for a Mechanical Suspension Seat Match
Three items select the model: the travel the cab allows, the operator weight range and the seat base measurements. Send them together with a photo of the seat position or the cab drawing, and say whether you are a machine builder, a distributor or an importer.
We reply with the model, the figures that come from the parameter sheet and the figures the factory still has to confirm. For OEM and ODM projects, state the program in the first line and add the drawing.
Contact KL Seating for Mechanical Suspension Seats
Write to [email protected] or call +86 177 0272 7677. A first message with the travel, the operator weight range, your role and seat photos gets a reply that names the model. The enquiry form is also available on the contact page.
Air line
KL11 forklift seatThe 176 mm slide split 80 mm and 96 mm, with the travel figure from the factory.
Forklift seatsThe six forklift models in one table.
Construction machinery seatsExcavator, loader and roller seats on the series page.
Air suspension seatsYJ03 and KL03 on a 24 V supply.
