Climbing Cone Assembly

Q: What determines the safe spacing of tie rods?

Tie spacing is governed by the maximum lateral pressure of fresh concrete, which depends on pour rate, concrete temperature, slump and wall height, plus the allowable load of the rod, the waler and the panel facing. Spacing must be calculated per pour, not copied from a previous project.

Q: What is the lead time?

Stocked sizes: ready to ship within 3 days. Custom sizes made to drawing: 7-15 days. Lead time is counted from order confirmation and may vary with surface treatment and order volume.

Q: Do you provide samples?

Yes. Standard samples are available for evaluation before bulk order. Sample lead time and courier arrangement depend on the item and destination.

Cone + sleeve + anchor set for climbing and slipform, tolerance ±0.5 mm.

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Tie Cone Assembly Series

Climbing Cone Assembly

High-strength alloy steel cones, heat treated, in standard M24 CF D15 (15mm bar, 28/40mm cone, 100mm length, 30mm hex) and M30 CF D20 (20mm bar, 40/60mm cone, 130mm length, 36mm hex) configurations. Cone angle and sleeve length are customizable and interchangeable with major climbing formwork brands, including Dywidag-style 15/20 systems.

Specifications

Eight kit sizes: M24D15 / M24D20 / M30D15 / M30D20 / M36D20 / M36D25 / M42D25 / M42D26.5
Cone and rod 45# steel · load bolt class 10.9 · plate and sleeve QT450-10 ductile iron
Four-piece set (no sleeve) or five-piece set (sleeve included)
System tensile rating 150 kN (M24D15 / M30D15) up to 430 kN (M42D25)
Rod length 350 mm on D15 / D20 · 400 mm on D25 · 350 mm on D26.5
Plastic protective cover keeps the cone face clean between pours

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Technical Specifications

M24 D15	Cone 1.02 kg · bolt M24 x 70 (0.34 kg) · rod D15 x 350 (0.52 kg) · plate 0.45 kg · total 2.33 kg · 4-piece · 150 kN
M24 D20	Cone 1.00 kg · bolt M24 x 70 (0.34 kg) · rod D20 x 350 (0.91 kg) · plate 0.60 kg · total 2.85 kg · 4-piece · 230 kN
M30 D15	Cone 1.13 kg · bolt M30 x 80 (0.62 kg) · rod D15 x 350 (0.52 kg) · plate 0.45 kg · total 2.72 kg · 4-piece · 150 kN
M30 D20	Cone 1.10 kg · bolt M30 x 80 (0.62 kg) · rod D20 x 350 (0.91 kg) · plate 0.60 kg · total 3.23 kg · 5-piece · 230 kN
M36 D20	Cone 1.78 kg · bolt M36 x 90 (1.04 kg) · rod D20 x 350 (0.91 kg) · plate 0.60 kg · total 4.33 kg · 5-piece · 230 kN
M36 D25	Cone 1.28 kg · bolt M36 x 90 (1.04 kg) · rod D25 x 400 (1.64 kg) · plate 0.80 kg · total 4.76 kg · 5-piece · 330 kN
M42 D25	Cone 2.60 kg · bolt M42 x 90 (1.56 kg) · rod D25 x 400 (1.64 kg) · plate 0.80 kg · total 6.60 kg · 5-piece · 430 kN
M42 D26.5	Cone 2.60 kg · bolt M42 x 90 (1.56 kg) · rod D26.5 x 350 (1.69 kg) · plate 1.00 kg · total 6.85 kg · 5-piece · 270 kN
Set	4-piece = cone + bolt + rod + plate · 5-piece adds the QT450-10 sleeve · plastic cover included
Material	Cone and rod 45# steel · bolt class 10.9 · plate and sleeve QT450-10 ductile iron
Install	Hex socket drive (10mm for 15, 13mm square for 20)
Custom	Cone angle, sleeve length and thread on request
Rating	Tensile figures are system design ratings; final selection depends on site conditions
Packaging	Matched sets, rust-protected, weighed and marked per set

MaterialCone & rod: 45# · Bolt: class 10.9 · Embedded plate & sleeve: QT450-10 ductile iron

Surface FinishPlain (black) · Zinc plated · Hot-dip galvanized

Rated Load150 kN (M24D15) up to 430 kN (M42D25) — see kit table

Unit WeightComplete set: 2.33 kg (M24D15) to 6.85 kg (M42D26.5)

PackagingSet-packed: cone + bolt + rod + plate + sleeve in one unit · marked per set

Climbing Cone Sets (cone + bolt + rod + plate + sleeve)

Set	Cone	Bolt	Rod	Plate	Sleeve	Total	Rated Load
M24D15	M24D15 · 1.02 kg · 45#	M24 × 70 · 0.34 kg · 10.9	D15 × 350 · 0.52 kg · 45#	D15 · 0.45 kg · QT450-10	M24 · QT450-10	2.33 kg	150 kN
M24D20	M24D20 · 1.00 kg · 45#	M24 × 70 · 0.34 kg · 10.9	D20 × 350 · 0.91 kg · 45#	D20 · 0.60 kg · QT450-10	M24 · QT450-10	2.85 kg	230 kN
M30D15	M30D15 · 1.13 kg · 45#	M30 × 80 · 0.62 kg · 10.9	D15 × 350 · 0.52 kg · 45#	D15 · 0.45 kg · QT450-10	M30 · QT450-10	2.72 kg	150 kN
M30D20	M30D20 · 1.10 kg · 45#	M30 × 80 · 0.62 kg · 10.9	D20 × 350 · 0.91 kg · 45#	D20 · 0.60 kg · QT450-10	M30 · QT450-10	3.23 kg	230 kN
M36D20	M36D20 · 1.78 kg · 45#	M36 × 90 · 1.04 kg · 10.9	D20 × 350 · 0.91 kg · 45#	D20 · 0.60 kg · QT450-10	M36 · QT450-10	4.33 kg	230 kN
M36D25	M36D25 · 1.28 kg · 45#	M36 × 90 · 1.04 kg · 10.9	D25 × 400 · 1.64 kg · 45#	D25 · 0.80 kg · QT450-10	M36 · QT450-10	4.76 kg	330 kN
M42D25	M42D25 · 2.60 kg · 45#	M42 × 90 · 1.56 kg · 10.9	D25 × 400 · 1.64 kg · 45#	D25 · 0.80 kg · QT450-10	M42 · QT450-10	6.60 kg	430 kN
M42D26.5	M42D26.5 · 2.60 kg · 45#	M42 × 90 · 1.56 kg · 10.9	D26.5 × 350 · 1.69 kg · 45#	D26.5 · 1.00 kg · QT450-10	M42 · QT450-10	6.85 kg	270 kN

Production Process

**Cutting & forming**Bar cutting, cold heading and plate forming to drawing dimensions.

**CNC thread rolling**Rolled threads for fatigue strength and consistent pitch diameter.

**Heat treatment**Quenching and tempering for class 8.8 and above, with process records.

**Surface treatment**Black oxide, zinc plating or hot-dip galvanizing to the specified thickness.

**Gauge & batch test**Thread gauging, hardness and tensile checks with batch test reports.

**Packing & marking**Set or BOM packing, VCI protection and seaworthy crates.

Material Grades Explained

Grade	Notes
Q235	Plain carbon steel. Economic option for light and medium formwork loads. Not heat treated.
45#	Medium carbon steel. The standard formwork tie rod grade in China; quenchable to class 8.8.
40Cr	Alloy steel. Higher hardenability and better fatigue performance than 45#; used where repeated reuse matters.
Class 10.9 bolt	Quenched and tempered alloy steel bolt used in the climbing cone set. Not electroplated without a documented baking cycle.
QT450-10	Ductile (nodular) iron with 450 MPa tensile and 10% elongation. Used for sleeves and embedded plates where toughness and castability matter.
HRB400	Hot-rolled ribbed bar (threaded steel) to Chinese standard. Used for embedded foot bolts; good bond with concrete.

Applications

Climbing formworkTunnel formworkColumn systemsDam / cantilever single-side concreting

Procurement Guide

Specify rod diameter and cone type (D15 or D20) before ordering
Order complete sets to guarantee cone-sleeve-screw matching
For dam single-side concreting, confirm M30/D20 configuration
Request heat-treatment and load test reports for project submittals

Procurement Information

OEM / Custom: Own drawing or label welcome
MOQ: Trial orders OK · mixed SKU welcome
Lead time: Stock 3d · Custom 7-15d
Packaging: Seaworthy: pallet + strapping + waterproof
Payment: T/T · L/C at sight
Incoterms: FOB Tianjin · CIF · CFR · EXW

Backed by an ISO-certified factory

ISO 9001/14001/45001 · In-house CNC · 18+ years in formwork fasteners · 48+ export countries

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Technical FAQ

Climbing Cone Assembly — Answers for Engineers and Buyers

Which steel grade and surface treatment should I choose? +

Formwork tie rods are commonly produced from medium and high carbon steel in 8.8 and 10.9 property classes. For corrosion protection: hot-dip galvanizing gives the thickest coating and suits outdoor and marine exposure; Dacromet (zinc-flake) coating avoids hydrogen embrittlement and is preferred for high-strength grades; electro-galvanized is an economical option for general use; black oiled bar is used indoors or where the rod is recovered and reused quickly.

What determines the safe spacing of tie rods? +

What is the lead time? +

Do you provide samples? +