KL Seating matches industrial vehicle and garden machinery seats to the machine they go on. Machine builders send the cab drawing, and we match a model to the base, the operator weight range and the free space. Distributors, importers and refit shops send the old seat with photos, and we match a model to what came off the machine.
Six measurements decide most fitment questions: the base mounting holes, the operator weight range, the suspension travel, the fore-aft slide, the backrest range and the overall envelope. Seats are also checked on power supply and on the option set.
The two orange rows, the base holes and the weight and travel pair, decide the match more often than the rest, and they get the longest sections below. If you want to see the models first, start with the construction machinery seat manufacturer range.
| Item | Where it comes from | What it decides |
|---|---|---|
| Base mounting holes | Cab drawing, or tape measure on the old seat base | Whether the frame bolts to the machine without drilling |
| Operator weight range | Cab specification, machine manual or old seat label | Which weight band the suspension is set for |
| Suspension travel | Cab specification or old seat label | The vertical movement and the head clearance |
| Fore-aft slide | Cab drawing or old seat | Reach to the controls at both ends of the operator height range |
| Backrest range | Cab drawing or old seat | Working posture and turning to look at the work |
| Overall envelope | Free space measured around the seat base | Whether the seat fits in width, depth and height |
| Power supply | Machine electrical data | Whether 24 V models run on the machine |
| Option set | Old seat or order sheet | Armrests, headrests, seat belts, locks, switches |
Send the measurements, or the photos of the old seat, together with the machine make and model. We reply with the matching model, the model parameter sheet and, where the library holds one, the model drawing. Each row ends in a yes or a no against a model parameter sheet.
Machine builders hold the cab drawing and the cab specification, so every measurement on the list can be taken from documents without a seat in hand. The route has four steps, and each step names the document that goes in.
The engineer reads the free width, depth and height around the seat base from the cab drawing and notes the position where the operator sits most of the shift.
The base hole pattern is read in both directions, and the position of any rails is noted.
The lightest and the heaviest operator weight, the suspension travel the cab was specified for and the supply voltage go on the same sheet.
Armrests, headrests, seat belts and any lock or switch are listed per seat, so the reply carries the model and its options on one line.
We reply with the model, the parameter sheet and the drawing where one exists. The engineer lays our drawing over the cab drawing, and the 3D scan result confirms the frame against the sheet. If a structural change is needed, the request moves to the research center and goes through the OEM and ODM seat manufacturer programs. The seat is built to the drawing, and the first reply states what the change covers.
Several machine variants? Send one set per variant. The reply names the model for each variant, and the variants that share a model are listed together so purchasing sees a single line.
Distributors, importers and refit shops hold the old seat. The seat in hand carries most of the information, and the photos carry the rest. The route has four steps as well.
FrontSideUndersideFront, side and underside photos, with the label or model plate in frame if there is one. The underside photo shows the rails and the hole layout.
The distance between the mounting holes in both directions, the overall size of the old seat and the slide distance.
The weight range and the suspension travel printed on the seat or in its catalogue entry go in the message when they exist.
The option set, the cover and whether the seats carry your own brand.
The photos and the three measurements are still enough to start. We reply with a matching model, and the engineer lists which values are confirmed from the photos and which still need a measurement.
Send the machine make and model with the photos. The sheet does not link a machine to a model, so we do not publish a table of machines against models. We reply with the matching model for your machine.
Distributors who supply several machine makes send one set per old seat model. The reply returns one line per seat, and models that match more than one old seat are grouped. For stocking in bulk, the line can be organised by series, with model and options on one list. Seats for resale can carry your own brand through the wholesale and private label route in the OEM and ODM program.
The base holes are the first measurement because they are the one item a seat cannot adapt to on site. Weight setting, slide and backrest all adjust. The holes either line up with the machine or they do not.
The hole pattern is the distance between the holes in both directions: across the seat and front to back. A seat that sits on slide rails has two patterns that matter. One is the pattern between the rails and the machine floor. The other is the pattern between the rails and the seat frame. Photos of the underside of the old seat show which of the two the old seat uses, and a tape measure gives the distances. Where a hole is slotted, the photo shows the slot and the measurement is taken at its centre.
Several models publish more than one base hole distance on their parameter sheet. A machine that was built for one of those distances may carry holes for another, and a seat photographed from the side hides this. The distance between the holes, the number of holes and the footprint of the base together name the match. We ask for the three together.
3D scanning at our precision testing center checks the base hole positions and the frame outer dimensions of the model. The result goes back to the buyer against the model parameter sheet. The engineer holds the sheet, the drawing and the scan result in one reply and compares them with the machine measurement. Where the machine measurement and the model do not agree, the reply says by how much and in which direction.
For a seat that sits on a forklift or a tractor, the same check applies. The forklift seat manufacturer range and the tractor seat manufacturer range list the models for those machines.
Three measurements named together. Base distances published on the parameter sheet:
Where the library holds no hole map, the hole pattern is requested from the factory and sent with the reply. We do not estimate it from another model.
Solid dot: the document exists.
Model drawings: YJ03, YY08, YQ40, YQ50, YS15 and YS2-8.
Drawings that carry a hole map: YQ40, YQ50 and YY08.
Hollow ring: the factory sends it with the reply.
No hole map in the library: YL02, YS15 and YS2-8. The hole pattern is requested from the factory and sent with the reply.
No drawing and no hole map: KL03. YL02 has no drawing in the library either.
The operator weight range and the suspension travel are read together, because the suspension is set for a weight and then moves through its travel. A seat that covers the weight but carries more travel than the cab has headroom for is a mismatch, and so is the reverse.
Published band per model. Faded bars stop at 120 kg; the sheet states no lower end.
Dot = single published value, bar = published range, in mm.
The lightest and the heaviest operator are the two figures to record. A machine builder takes them from the cab specification. A distributor takes them from the old seat label, from the machine manual, or from the fleets it supplies. The published bands on our parameter sheets vary by model: KL01, KL11, YL02, YS15 and YJ03 are published at 50 to 130 kg. YY01, YS2-8 and YY08 stop at 120 kg. YY03 and YY53 start at 40 kg and stop at 120 kg. Both ends of the machine range are compared with the band of the model, and a machine that falls outside the band moves to another model.
The published values differ widely: 48 mm for YY53, 50 mm for KL01, 70 mm for YL02, 80 mm for YJ03 and YY08, and 40 to 110 mm for YS15 and YS2-8. KL03 carries 180 mm. The travel figure of the old seat, or the figure the cab was specified for, goes next to these. A value inside the published range is a match on this item. A value outside it moves the enquiry to a comparison.
The suspension travel moves the seat up and down, so the free height above the base is measured with the travel in mind. The engineer checks the model height and its travel against the headroom of the cab. Machine builders take the headroom from the cab drawing. Distributors take it from the machine with the old seat in place.
Where the sheet does not state an item, such as how the weight is set, the factory's answer comes in the reply text together with the sheet. We do not borrow those answers from another model. The sheet of the model is the document that purchasing orders against.
Send the weight range, the travel and the free height with the machine model. The reply comes back with the model and the sheet. The YS15 excavator seat manufacturer page shows this check run on one model, line by line.
The other measurements follow the same logic and are quicker to check. Each one has published values per model, and the reply compares them with yours.
The check is whether the operators of the machine reach the controls at both ends of their height range.
The check compares the working posture of the machine with the range of the model, and the rear angle matters wherever the operator turns to look at the work.
The envelope check uses the free space at the seat position, with the seat at the position the operator uses most. The measurement runs in three directions: width, depth and height.
The old seat or the order sheet states which options the buyer needs. A buyer who needs an option the model does not list receives a comparison with another model.
Before the enquiry, check whether the machine or the old seat carries a 24 V supply. Send the machine voltage in the first message, and we reply with the confirmation for the model.
A different standard model from the line may fit the measured pattern. The reply names it and the figure that decides the difference.
The pattern is changed through the OEM and ODM seat manufacturer programs, where the research center works from the machine drawing.
OEM and ODM seat manufacturer programsA machine builder starts this from the cab drawing. A distributor starts it from the old seat and a set of photos.
The first reply is a document set, so the engineer and purchasing work from the same papers.
One model, or two when a figure sits at the edge of a band, each with the figure that decides the difference.
It carries weight band, travel, slide, backrest and overall size where published. Purchasing orders against it.
The library holds drawings for YJ03, YY08, YQ40, YQ50, YS15 and YS2-8. Where a figure differs from the sheet, the sheet governs.
It records the base hole positions and the frame dimensions against the sheet.
ISO 9001:2015, CE, RoHS and REACH copies go to the quality department.
YL02 and KL03 have no drawing in the library, and the hole pattern for those models is requested from the factory. The certificate numbers are on the copies.
Scan result against the sheetThe result goes back to the buyer against the model parameter sheet. The engineer holds the sheet, the drawing and the scan result in one reply.
Each production step behind the seat is on a line owned by us.
MES records cover quality inspection and delivery.
Pick the set that matches what you hold, fill the plate with your own measurements and the first message writes itself.
Nothing is sent from this page. Attach the photos or the drawing in your email, then send it to [email protected].
We reply with the matching model, the parameter sheet and the drawing.
Send the machine make and model, the weight range, the hole pattern or the old seat photos to [email protected], or call +86 177 0272 7677. We reply with the matching model, the parameter sheet and the drawing. The contact page has the enquiry form.