Arch Framework Slope Moulds
Plastic moulds for concrete arch-framework slope protection — straight arch beams, radius-specific curved beams (R75–R225), complete numbered/lettered piece sets for inner Ø2.5m and Ø3m arch rings, L-type side beams and frame-grid blocks. 80 catalogue moulds for highway, railway and dam slopes.

80 qualified mould images across 4 groups — straight and curved arch beams (curved beams are radius-specific), complete framework piece sets (A–H / No.1–5 for inner Ø2.5m and Ø3m arches), L-type side beams and frame-grid slope blocks. Sets and radii can be quoted from drawings or the target arch drawing.

Straight Arch Beam Mould 50×15×6cm

Straight Arch Beam Mould 49.5×20×5cm

Straight Arch Beam Mould 49.5×18×6.3cm

Straight Arch Beam Mould 53×20×5cm

Straight Arch Beam Mould 53×20×6cm

Straight Arch Beam Mould 49.5×23×5cm

Straight Arch Beam Mould 69×25×6cm

Straight Arch Beam Mould 50×30×5cm

Straight Arch Beam Mould 53×30×5cm

Straight Arch Beam Mould 73×30×10cm (flat slab)

Straight Arch Beam Mould 49.5×33×5cm

Straight Arch Beam Mould 50×35×5cm

Straight Arch Beam Mould 46×33×8cm

Straight Arch Beam Mould 50×35×8.5cm

Straight Arch Beam Mould 55×40×6cm

Straight Arch Beam Mould 50×8×10cm

Straight Arch Beam Mould 42×8×8cm

Straight Arch Beam Mould 44×15×5cm

Curved Arch Beam Mould 49.5×18×6.3cm R150

Curved Arch Beam Mould 49×18×6cm

Curved Arch Beam Mould 49.5×20×5cm

Curved Arch Beam Mould 49.5×23×5cm R150

Curved Arch Beam Mould 53×20×5cm

Curved Arch Beam Mould 53×20×6cm R150

Curved Arch Beam Mould 67×25×6cm R100

Curved Arch Beam Mould 56×25×10cm R100

Curved Arch Beam Mould 50×25×6cm R75

Curved Arch Beam Mould 49×25×10cm

Curved Arch Beam Mould 49.5×30×5cm R150

Curved Arch Beam Mould 49.5×30×5cm R200

Curved Arch Beam Mould 53×30×5cm R150

Curved Arch Beam Mould 46.7×30×5cm

Curved Arch Beam Mould 50×30×5cm

Curved Arch Beam Mould 50×30×10cm R120 (outer R130)

Curved Arch Beam Mould 83×30×10cm R150

Curved Arch Beam Mould 49.5×33×5cm R225

Curved Arch Beam Mould 50×30×10cm R150

Curved Arch Beam Mould 49.5×33×5cm R150

Curved Arch Beam Mould 46×33×8cm

Curved Arch Beam Mould 68×33×5cm

Curved Arch Beam Mould 50×35×5cm R150

Curved Arch Beam Mould 52×38×6cm R150

Curved Arch Beam Mould 50×35×8.5cm R122

Curved Arch Beam Mould 50×38×5cm R75

Curved Arch Beam Mould 57×40×6cm

Curved Arch Beam Mould 57×8×10cm

Curved Arch Beam Mould 29.5×15×5cm

Curved Arch Beam Mould 49.5×15×6cm

Fujian Arch Framework Set Mould R150 (thickness 20/25cm)

Arch Framework No.1 Piece Mould (width 50.7cm, thk 20cm, R125)

Arch Framework Set R125 (pieces 1#–5#, width 50.7cm, thk 20cm)

Arch Framework No.2-Left Piece Mould R125

Arch Framework Plastic Mould Set, inner Ø3m (pieces A–G layout)

Arch Framework Piece A Mould 50×50×10cm

Arch Framework Piece C Mould 50×50×15cm

Arch Framework Piece E Mould 71×50×15cm

Arch Framework Piece G Mould 65×50×15cm

Arch Framework Piece D (left & right) Mould 75×25×15cm

Arch Framework Piece F Mould 46×46×15cm

Arch Framework Set Mould, inner Ø3m, thickness 20cm

Arch Framework Piece G Mould 65×50×20cm

Arch Framework Piece F-Right Mould 46×46×20cm

Arch Framework Piece C Mould 50×50×20cm

Arch Framework Piece F-Left Mould 46×46×20cm

Arch Framework Piece E Mould 71×50×20cm

Arch Framework Piece A Mould 50×44×15cm

Arch Framework Piece H Mould 50×50×15cm

Arch Framework Set Mould, inner Ø2.5m, thickness 20cm (No.1–5)

Arch Framework No.2 Piece Mould 55×50×15cm

Arch Framework Set Mould, inner Ø2.5m, thickness 15cm (No.1–5)

Arch Framework No.1 Piece Mould 55×50×15cm

Arch Framework No.3 Piece Mould 74×53×15cm

Arch Framework No.4 Piece Mould 69×59×15cm

Arch Framework No.1 Piece Mould 60×54×20cm (inner Ø3m set)

Anhui Arch Framework Set Mould (width 40cm, thk 13cm, inner Ø3m, R150)

Arch Framework No.5 Piece Mould 69×59×15cm

Arch Framework Set Mould, inner Ø2.5m (overview)

L-Type Side Beam Mould 49.5×41×16cm

L-Type Arch Framework Beam Mould 49.5×40.8×21cm

Frame-Grid Slope Block Mould 31×31×15cm (with strip stones 100×10×15cm)
Straight ribs, radius-specific curved beams and numbered set pieces for highway, railway and dam arch slope protection.
| Project need | Recommended mould direction | Quote details to prepare |
|---|---|---|
| Arch framework for highway/railway slope | Complete set (pieces A–H / No.1–5) + curved beams by radius | Inner arch diameter, beam width/thickness, piece list, R value |
| Long slope run, many identical rings | Full set per ring × ring count + spare curved pieces | Slope length, ring spacing, rings per slope, spare % |
| Lattice / frame-grid slope instead of arches | Frame-grid block 31×31×15cm + strip stones + L-type edge beams | Grid spacing, strip-stone lengths, edge beam section |
Arch framework (gongxing gujia) slope protection is a reinforced concrete grid of arched ribs cast on highway, railway and dam slopes. Concrete arch beams interlock into rings that trap soil and vegetation; the arched shape transfers slope load into the side beams. It is one of the most common engineered slope systems for long transport cuts and embankments. We mould every piece: straight beams, curved arch beams, and the numbered or lettered set pieces.
R is the arc radius of the curved beam in centimetres — we carry R75, R100, R120, R122, R125, R150, R200 and R225. One curved-beam mould makes one radius only, exactly like curved kerbstone: an R150 beam cannot be bent to R120 on site. The radius is fixed by the arch drawing and the inner arch diameter, so quote the R from the drawing, not from an existing beam. Ordering the wrong R is the most common mistake because straight and curved beams of the same nominal size look similar in photos.
It is the clear inside diameter of each arch ring after assembly. A set is made of several numbered pieces (A–H or No.1–No.5, with left/right handed variants) that together form one ring. Pieces are not interchangeable between diameters: a No.2 piece from a Ø3m set does not fit a Ø2.5m ring. Common set thicknesses are 15, 20 and 25cm. Buy by the complete set per ring, and multiply by the number of rings along the slope plus spare pieces for breakage.
Send the arch design drawing (or the standard the project references) with: inner arch diameter, beam width and thickness, the number of pieces per ring and their numbers, the curved-beam radius, and the L-type side beam size. The Fujian and Anhui highway sets we hold are R150/R125 reference designs — if your project matches a regional standard, name it and we can map pieces directly.
Straight beams (the flat ribs and crosspieces) are interchangeable by length and thickness, so order those by running length. Curved beams are radius-specific and used per arch ring, so count rings × curved pieces per ring and add spares. Under-ordering curved beams is the usual cause of a half-finished slope because they cannot be substituted with straight ones.
Yes. The square frame-grid block (31×31×15cm) and its strip stones (100×10×15cm, 79×10×15cm) form the alternative lattice-slope system, and L-type side edge beams (e.g. 49.5×41×16cm) finish the outer edges. These can be ordered with the arch system so the whole slope face is cast from matched moulds.
Straight and simple curved beams use polypropylene (PP) for 150+ pour cycles with good demoulding flexibility. Large set pieces and tight-radius curved beams are often made in ABS for crisper, dimensionally stable arcs over many cycles. We recommend PP/ABS based on the piece and your volume.
Mixed-SKU orders are welcome; there is no strict MOQ on catalogue beams. Complete multi-piece sets are made to order and typically run 15–30 days after the arch drawing is approved. Because sets are long and bulky, we plan container loading in advance (20'/40' HQ, flat-rack or open-top). Send the drawing, quantities per piece and destination port for an FOB Ningbo/Shanghai quote.