Double Layer Floor Deck Roll Forming Machine – Steel Decking Sheet Machine for Building
The floor deck is the hidden machine of steel construction: while the roof gets the attention, the floors carry the building. A floor deck (压型钢板/楼承板) is a structural steel sheet that works as permanent formwork for concrete floor slabs in steel-frame buildings — it supports the wet concrete during construction, bonds mechanically with the concrete through embossments, and acts as tensile reinforcement after curing. The machine that forms it is one of the most technically demanding in the roll forming industry — and Xinnuo’s floor deck line is built on 71 production-proven profiles (2011–2025).
The double layer floor deck machine puts two floor deck profiles on one frame: a single machine body carries two forming roller sets, and by switching the material path the producer runs either profile without a second machine. For the floor deck producer serving buildings with different floor spans — a 688-class for one project, a 750-class for another, an open deck here and a closed deck there — the double layer machine is the flexibility answer on one footprint.
What the Title Says, Decoded
- Double Layer Floor Deck Roll Forming Machine — a floor deck machine with two roller sets on one frame: switch the material path, run either deck profile.
- Steel Decking Sheet Machine — the machine class by output: the steel sheets that deck (form) concrete floors in steel-frame buildings.
- for Building — the application: steel-frame buildings whose floors are composite slabs — steel deck plus cast-in-place concrete.
Why Floor Deck Is Different from Roof Sheet
Every buyer comparing a floor deck machine to the roof sheet machines of the same factory must understand: floor deck machines are a different engineering class. The deck’s ribs are 3–8 times deeper than roof panel ribs (50–153 mm vs. 15–40 mm), the material is thicker (0.8–1.5 mm vs. 0.3–0.8 mm), the forming needs 18–36 rows instead of 14–18, the drive is dual-motor (2×11 kW vs. a single 3–5.5 kW), and the machine carries anti-pooling mechanisms that roof machines never need. Floor deck machines are heavier, slower-running, and more demanding — and the double layer configuration inherits all of that engineering, twice.
The Producer’s Question
For the floor deck producer — or the steel building contractor adding deck production — the question is portfolio: which deck profiles does the market need, and how many machines does serving them require? The double layer machine answers with two profiles on one frame; this page explains how the deck itself works, what the machine must deliver, and how the double layer configuration serves the region’s steel building floors.
♦ COMPANY PROFILE:
Hebei Xinnuo Roll Forming Machine Co., Ltd., not only produce different types of professional roll forming machines, but also develop intelligent automatic roll forming production lines, C&Z shape purline machines, highway guardrail roll forming machine lines, sandwich panel production lines, decking forming machines, light keel machines, shutter slat door forming machines, downpipe machines, gutter machines, etc.
Advantages of Roll Forming A Metal Part
There are several advantages of using roll forming for your projects:
- The roll forming process allows operations such as punching, notching, and welding to be performed in-line. Labor cost and time for secondary operations are reduced or eliminated, reducing part costs.
- Roll form tooling allows for a high degree of flexibility. A single set of roll form tools will make almost any length of the same cross-section. Multiple sets of tools for varying length parts are not required.
- It can provide better dimensional control than other competing metal forming processes.
- Repeatability is inherent in the process, allowing easier assembly of roll formed parts into your finished product, and minimizing problems due to “standard” tolerance build up.
- Roll forming is typically a higher speed process.
- Roll forming offers customers a superior surface finish. This makes roll forming an excellent option for decorative stainless steel parts or for parts requiring a finish such as anodizing or powder coating. Also, texture or pattern can be rolled into the surface during forming.
- Roll forming utilizes material more efficiently than other competing processes.
- Roll formed shapes can be developed with thinner walls than competing processes
Roll forming is a continuous process which converts sheet metal into an engineered shape using consecutive sets of mated rolls, each of which makes only incremental changes in the form. The sum of these small changes in form is a complex profile.
