YL02 Construction Machinery Seat Supplierfor Machine Builders and Distributors: 70 mm Suspension, 190 mm Slide and Three Hole Distances
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KL Seating supplies the YL02 construction machinery seat to machine builders that fit seats on new trucks, construction machines and heavy equipment, and to distributors and importers that stock a mechanical suspension seat for the same machines. YL02 has a mechanical suspension with 70 mm of travel, slides 190 mm fore and aft in 10 mm steps, and covers operator weights from 50 to 130 kg. The parameter sheet lists truck, construction machines, heavy equipment and bus as the machines it is made for.
The first figure to settle on this model is the base. The sheet gives three hole distances, 230, 285 and 330 mm, and the whole page is organised around checking them against the seat or the cab floor you hold. The suspension travel and the slide follow in the next sections.
Send the machine make and model, the operator weight range and either the cab base measurements or photos of the old seat from underneath. We reply with the confirmed model, the YL02 parameter sheet and the mounting data. If you only want the figures first, the specification sheet is the next section.
- Mechanical suspension, 70 mm of travel
- 190 mm fore-aft slide in 10 mm steps
- Hole distances 230, 285 and 330 mm on the parameter sheet
- Operator weight range 50 to 130 kg
- 35,000 m² factory with robotic welding and a 300+ m² testing center
YL02 Specification Sheet: Suspension, Slide, Weight Range, Hole Distances and Cover
| Item | YL02 on the parameter sheet |
|---|---|
| Sheet type | Construction machinery mechanical suspension seat |
| Suspension | Mechanical, 70 mm of travel |
| Operator weight range | 50 to 130 kg |
| Fore-aft adjustment | 190 mm, 10 mm per step |
| Base hole distances | 230 mm, 285 mm and 330 mm |
| Cover | PVC |
| Machines listed | Truck, construction machines, heavy equipment, bus |
| Options | None listed on the sheet; the option set is confirmed in the enquiry |
The sheet carries no overall seat size and no backrest angle for YL02, and no drawing is issued for this model. Where a figure is not on the sheet, we do not estimate it. The reply to your enquiry states what the factory confirms, and the sheet governs wherever another document differs.
Suspension travel
70mm
Fore-aft slide, 10 mm per step
190mm
Operator weight range
50–130kg
Machines on the Sheet: Truck, Construction Machines, Heavy Equipment and Bus
The parameter sheet lists four uses for YL02, in the sheet's own words: truck, construction machines, heavy equipment and bus.
Truck
Construction machines
Heavy equipment
Bus
What the sheet does not say
The sheet does not match YL02 to named machines such as loaders, rollers or backhoes, and we do not write that match here.
What we do instead
Send the machine type with make and model, and we reply with the model that fits it. If YL02 fits, the reply carries the sheet and the mounting data. If another model fits better, the reply says which and why.
How to use the list
- Machine builders: the list is a starting point for the seat specification. The operator sits in a cab on a mechanical suspension, so the cab floor, the free height and the base pattern are the facts that count.
- Distributors: the list is a starting point for the catalogue entry that sits beside the other construction seats.
The construction machinery seats page lists the five construction models side by side with their sheet data.
Mounting Hole Distances: What the 230, 285 and 330 mm Figures Cover and What the Sheet Leaves Open
What the sheet publishes
YL02 is one of the few models whose sheet publishes three base hole distances. Most models on the sheet publish two or none. That is useful, because it gives a buyer three numbers to hold against a cab floor or an old seat rail before any seat ships.
The three distances
The three distances are 230 mm, 285 mm and 330 mm. The sheet states them as distances and stops there. No hole map is issued for YL02, so the direction each distance runs in, the number of holes and the shape of the slots are confirmed by the factory when you enquire, and they go back to you in writing next to the sheet figures.
How to measure
Three habits keep the check clean on your side:
- Measure centre to centre of the holes, in both directions, not edge to edge.
- Count the holes and note any slotted or oval holes, because a slot changes how much tolerance the base has.
- Write down which measurement runs along the slide direction of the seat.
With those numbers the mounting question is closed at the first reply. Without them it stays open through every later message.
Direction, hole count and slot shape: confirmed in the reply, in writing next to the sheet figures.
Why the pattern matters
A seat that fits one measurement can still miss the base. A rail with the right spacing in one direction and the wrong spacing in the other leaves the seat sitting on two bolts out of four. A cab built for a different pattern means a drilled plate, an adapter bracket or a seat returned from the line. We would rather settle the pattern from numbers than from a freight bill.
Hole Check Route for YL02: Steps for Machine Builders, Steps for Distributors and What Comes Back
The route runs the same way for both buyer types and differs only in where the numbers come from.
Take the pattern from the drawing
Machine builders take the base hole pattern from the cab drawing or the seat mounting plate drawing, and send the three distances with the hole count. We set them against 230, 285 and 330 mm and confirm which distance maps to which direction on YL02.
Measure the old seat
Distributors and importers measure the old seat. The underside of an old seat shows its rails and holes. Photos from underneath, taken square to the base with a ruler or tape in frame, carry the numbers we need even when the model plate is gone. Distance between holes in both directions goes with the photos.
At the factory, 3D scanning checks the base hole positions and the frame outer dimensions of the YL02 frame, and the result goes back to you against the model parameter sheet. That is the step that ties the sheet figures to the physical frame. Your engineer reads the scan result next to your own base measurements.
What comes back to you
The confirmed model name
The model we name for your machine.
The YL02 parameter sheet
The sheet governs wherever another document differs.
The hole distances with direction and count
Written out for your base.
The 3D scan result for the frame
Against the sheet.
If the pattern does not match, the reply says so. The next move is a different standard model, or a custom change through the OEM and ODM seat manufacturer programs, where structural changes go to our research center. For the wider fitment method across models, the seat fitment compatibility guide sets out the measurements in order.
Send the three measurements and we confirm the model: [email protected]
Email the three measurements70 mm Mechanical Suspension: Travel, Weight Range and the Clearance Under the Seat
Travel and weight
YL02 carries a mechanical suspension with 70 mm of travel. The sheet gives the travel and the operator weight range of 50 to 130 kg, and the two figures are read together: the suspension is set for the weight of the person on it, and the travel is the room it works in.
Clearance under the seat
The travel needs free height under the seat. Seventy millimetres of stroke means the seat base moves down by that distance on a hard bump, so a cab floor with a tray, a battery box or a bracket under the seat takes space from the stroke. The sheet gives the stroke and no seat height, so the free height is read against the figure we return with the model reply.
The shock absorber
Mechanical suspension models have a shock absorber, and the shock absorber is the part we analyse. Damper mechanics analysis is run on the shock absorber unit of the mechanical suspension models, including YL02, and the result is used to confirm the fit between suspension travel and weight setting. The analysis covers the shock absorber on its own and does not describe a whole-seat vibration test, and we do not publish vibration or life figures for YL02.
The mechanical suspension seats page sets YL02 beside the other mechanical models across machine families.
Send these three numbers
- Lightest operatorOperators on one machine can differ by many kilograms, and the model reply confirms that both ends fall inside 50 to 130 kg.
- Heaviest operatorA machine builder takes both weights from the cab specification. A distributor takes them from the old seat label or the machine manual.
- Free height under the seatBetween the cab floor and the underside of the base, measured at the seat position.
190 mm Fore-Aft Slide in 10 mm Steps: Reach, Rail Space and Step Size
The slide on YL02 covers 190 mm in steps of 10 mm.
- 10 mm per step
- Split between forward and rearward from the middle position: confirmed in the reply (not on the sheet).
Reach
The range is useful in two ways. A cab with operators of different build can set the seat to the pedals and levers by a small step. A distributor can cover several cab layouts with one model because the range is long.
Rail space
A 190 mm range needs 190 mm of rail room plus the seat's own length in the cab. The sheet does not publish how the 190 mm divides between forward and rearward from the middle position, so the split is confirmed in the reply. Send the free space in front of the seat and behind it, measured from the middle of the current seat position.
Step size
The 10 mm step is the fine part. Step size decides how closely an operator reaches a position that suits them, and ten millimetres is small enough to settle a seat without fighting the next click.
YL02 Production: Foam Molding, Stamping, Robotic Welding and Assembly
The YL02 frame and cushion go through four steps in our factory.
- The factory covers 35,000 m² and runs automated lines for foam molding, precision stamping and robotic welding.
- Annual capacity is 500,000 seats across the full range.
- MES covers research, purchasing, production, quality inspection, warehousing and delivery, and YL02 follows the same record chain as every other model.
Foam molding
Forms the seat cushion and backrest cushion.
Precision stamping
Forms the frame and the base.
Robotic welding
Joins the frame parts in the robot welding station.
Assembly
Fits the mechanical suspension, the slide rails and the options that are chosen.
We do not offer per-batch inspection records for YL02, and the page makes no promise that later batches repeat the first one in a measured way. The route and the checks in the next section are what we describe.
Factory Checks for YL02: Damper Mechanics Analysis, 3D Scan, CAE and Pressure Distribution
Our testing center covers more than 300 m², holds more than 20 test devices and runs more than 30 test items. Four of them apply to YL02.
Damper mechanics analysis
On the shock absorber of the mechanical suspension, used to confirm the fit between the 70 mm travel and the weight setting.
3D scanning
Of the base hole positions and the frame outer dimensions, returned to you against the sheet.
CAE structural analysis
Of the frame at the design stage.
Pressure distribution comfort testing
Of the seat cushion.
What the checks state
The checks are described by what they measure. We do not publish pass thresholds, sampling rates or reject rates for YL02, and the reply to your enquiry does not invent them.
What a buyer receives
The model parameter sheet, the hole data and the scan result, and copies of our certificates: ISO 9001:2015, CE, RoHS and REACH.
Visit the factory
Buyers who want to see the factory can ask to visit. We accept pre-arranged factory visits, and the sales reply sets them up.
Pass thresholds, sampling rates and reject rates: not published.
YL02 Against YS15 and YQ40: Where Each Model Sits on the Parameter Sheet
| YL02 this page |
 YS15 |
 YQ40 | |
|---|---|---|---|
| Suspension | Mechanical, 70 mm | 40 to 110 mm, type not stated on the sheet | Not stated on the sheet |
| Operator weight range | 50 to 130 kg | 50 to 130 kg | Not stated on the sheet |
| Fore-aft slide | 190 mm in 10 mm steps | 176 mm in 16 mm steps | 120 mm forward and 110 mm rearward in 23 positions |
| Hole data | Three distances: 230, 285, 330 mm | Requested from the factory | Hole map on the drawing |
| Overall size | Not on the sheet | 525 × 610 × 780 mm | 570 × 480 × 1160 mm |
The choice follows the figure your specification names. When the cab specification names a 70 mm mechanical suspension and a long slide in 10 mm steps, YL02 is the model. When it names a travel range of 40 to 110 mm and an overall size, the YS15 excavator seat is the one to look at. When it names overall size, a 23-position slide and a backrest range, the YQ40 heavy machinery seat is the one.
YL02 is the only one of the three with a published mechanical suspension at a fixed 70 mm and three published hole distances. YS15 has a wider travel range, and YQ40 has the fuller set of size figures and a drawing.
Documents Sent With a YL02 Enquiry: Parameter Sheet, Hole Data and Certificates
The reply to a YL02 enquiry holds these documents:
No drawing for YL02
No external drawing is issued for YL02, so the mounting data takes the place of the drawing in the reply.
| YL02 | No external drawing; mounting data in the reply |
|---|---|
| YQ40, YQ50, YS15, YS2-8 | Have drawings |
Where a drawing and a sheet differ, the reply says which values are affected, and the sheet governs.
Send the mounting measurements and the machine type, and the full set comes back in one reply.
Supply Routes for Machine Builders and Distributors: OEM, ODM, Wholesale, Private Label and Bulk Supply
KL Seating serves two buyer types with YL02.
Machine builders
Machine builders work through OEM and ODM. We set the model to your drawing and base, and structural changes go to the research center. OEM and ODM are company-level services across the product line, handled through the OEM and ODM seat manufacturer programs.
Distributors and importers
Distributors and importers work through wholesale and private label. The seats can carry your own brand, and bulk supply can run by series, with the model and the options on the same sheet.
The factory ships to buyers in Asia, the Americas and Europe: our export mix is 50% Asia, 30% Americas, 10% Europe and 10% other markets.
Commercial terms are agreed in the reply to the enquiry and are not published on this page.
Enquiry Checklist for YL02: Copy the Set That Matches What You Hold
If you hold the cab drawing
Machine builders, engineering and purchasing.
- Machine type, make and model, and the seat position in the cab.
- The three base hole distances in both directions, and the hole count.
- Free height under the seat and free space in front of and behind the seat position.
- Operator weight range, lightest and heaviest.
- Whether the request is the standard model, a custom change or a seat built to your drawing.
If you hold an old seat
Distributors, importers and refit shops.
- Machine type, make and model.
- Photos of the old seat from the front, the side and underneath, with the model plate if there is one.
- Distance between the mounting holes in both directions, centre to centre, and the hole count.
- Weight range and travel printed on the old seat, if there is a label.
- Cover, option set and whether the seats carry your own brand.
Send the Machine Type, the Three Hole Distances and the Operator Weight Range
We reply with the confirmed model, the YL02 parameter sheet and the mounting data.
Contact KL Seating About YL02: Send the Machine Type and Three Hole Distances
Send the machine type, make and model, the three base hole distances or photos of the old seat from underneath, and the operator weight range to [email protected], or call +86 177 0272 7677. We reply with the confirmed model, the YL02 parameter sheet and the mounting data. The contact page for the YL02 construction machinery seat supplier has the enquiry form.
Reach us directly
What to include
- Machine type, make and model
- The three base hole distances, or photos of the old seat from underneath
- Operator weight range