Tongue-and-Groove Sandwich Panel
Tongue-and-groove sandwich panels are machine-made panels whose boards join through a tongue-and-groove joint. The general machine-made width is 1,150 mm, with thickness from 50 to 150 mm for the 1150 type, and length following the project. This category page covers the joint route; it does not claim a specification for any single core.

The tongue-and-groove route
Machine-made tongue-and-groove panels are formed by continuous automated roll-press bonding and install quickly. The tongue-and-groove joint suits cleanroom walls and ceilings and modular assembly, because boards assemble as a system. Handmade panels offer the same joint form alongside middle-aluminium and blind-panel joints, with a galvanised keel edge and easy dismantling.
Other joint systems in the range are middle-aluminium joining and blind-panel ceiling joining. State the joint type with the core and the application, because the joint decides how boards assemble, dismantle and seal at the junction.
Panel routes and joint systems
Handmade panels use a galvanised steel keel edge, allow pre-embedded conduits and pre-cut openings, and are easy to dismantle. They suit high-standard cleanroom workshops and cost more than machine-made panels. Machine-made tongue-and-groove panels are formed by continuous automated roll-press bonding and install quickly. Combined handmade and machine panels join the two routes without a seam, reducing on-site cutting waste for projects that need both machine-made speed and handmade flexibility.
Joint options described in the product overview are tongue-and-groove joining, middle-aluminium joining, and blind-panel ceiling joining. Handmade panels additionally use middle-aluminium joints, tongue-and-groove joints and blind-panel joints. Joint choice affects airtightness, dismantling and site cutting, so state your joint type in the brief.
What to confirm before ordering
Confirm core choice, panel width, thickness, joint type, surface colour and application before quotation. Steel colours follow the international colour card, and the regular colours on each product page may differ slightly, so confirm the colour against the specific product page for your order. Certificates are available upon request. For quantity and timing, share your quantity and target date to get MOQ and lead time for your order.
How to brief a cleanroom panel maker
Tell us your core, width and joint type — we will confirm MOQ and lead time for your order.
Share your cleanroom layout and core requirement — get a panel selection reply for your project.
Include: core choice, panel width, thickness, joint type, application, quantity and target date. For a project reply, write to [email protected] or call +86 13929918930.