Jingtong Rubber Rubber Air Bladders for Culverts Inflatable Rubber Mandrel for Culverts

• Customization: Available
• Usage: Bridge/Culvert/Formwork etc.
• Material: EPDM
• Model NO.: JT89RY
• Type: Jingtong Rubber Rubber Airbag for Pipeline/Constru
• Brand: Hengjinggong
• Color: Black
• Shape: Circle / Rectangle / Ellipse
• Application: Bridge/Culvert/Formwork etc.
• Wall Thickness: 3-5mm
• Size: Customized
• Transport Package: in Wovenbag on Pallet
• Specification: CE/ISO
• Trademark: HengJingGong
• Origin: China
• HS Code: 40169990
• Production Capacity: 10000PCS Per Year
• Package Size: 50.00cm * 45.00cm * 40.00cm
• Package Gross Weight: 20.000kg

Product Description

Product Description

The Inflatable Rubber Culvert Airbag is a flexible, expandable, and contractible temporary inner mold specifically designed for manufacturing concrete culverts, pipes, and other hollow components. Constructed from high-strength rubber and fiber reinforcement layers, it withstands concrete pressure after inflation to form precise internal cavity shapes. This product can replace traditional steel or wooden molds, offering significant advantages in reducing costs and accelerating construction progress.

Rubber Inflated Culvert Balloon for Hollow Slabs

    The rubber inflated culvert balloon, also known as the bridge inflatable core mold, is an expandable and contractible cylindrical bag made of rubber with a fiber-reinforced layer, featuring excellent tensile strength, elasticity, and air-tightness. It is primarily used to form cavities in concrete components.

    When manufacturing hollow components, the inflatable core mold is placed in the middle of the component and is expanded by injecting compressed air. The inflated core mold can withstand the pressure of concrete, thus effectively replacing traditional wooden, bamboo, and steel molds. When in use, simply open the valve, and the airbag will deflate, making it easy to remove from the cavity.

Material

*Main Rubber Material: Primarily uses Natural Rubber or high-quality blends of natural and synthetic rubber, ensuring high elasticity, excellent air tightness, and good durability.
*Reinforcement Layer: Incorporates a high-strength fiber skeleton material, such as nylon cord or anti-stretch fabric, bonded to the rubber through a hot-press vulcanization process, giving the airbag high tensile strength and pressure resistance.
*Manufacturing Process: Utilizes integral winding or seamless special anti-burst production processes, resulting in a smooth bag body that is wear-resistant, aging-resistant.

Cross-sectional shape of inflatable rubber airbags

Specification

item	index
thickness tolerance, mm	3.2±2
shore A	65±5
adhesive strengh N/25MM	≥8
tensile strength, mpa	≥12
elongation at break %	≥350
300% constant elongation,mpa	6
stretching deformation rate	≤20%
suitable temperature,ºC	-10-+80
appearance	no crack, no bubble, impurity length≤3mm depth≤1.5mm and no more than one place each meter

Installation

Product Details

Customer Visit

Packaging & Shipping

Company Profile

    Hengshui Jingtong Rubber Co., Ltd., located in Hebei Province's Hengshui City, is a professional manufacturer of engineering rubber products. Our product range includes bridge bearings, expansion joints, water stop strips, water stop belts, inflatable cores, building deformation joint device and water plugs, which are widely used in bridge, tunnel, water conservancy, and power engineering projects. The company boasts advanced technology and mature processes to ensure reliable product quality.

    We have a professional technical team and a comprehensive after-sales service system to ensure customers receive high-cost-performance products and attentive service. Hengshui Jingtong Rubber Co., Ltd. is committed to continuous innovation to meet market demands and looks forward to establishing long-term cooperative relationships with customers from both domestic and international markets.

FAQ

1.When can I get the quotation?
A:We usually quote within 24 hours after we get your inquiry.

2.How long can I expect to get the sample?
A:The samples will be ready for delivery in 5-10days. The samples will be sent to you via express and arrive in 5-7days.

3.How long is the delivery time
A:Usually 10-15 days, depending on the quantity purchased.

4.How can I get a sample to check your quality?
A:After negotiating the price, we will provide you with samples for testing.

5.What's payment term?
A:T/T, L/C at sight, Western Union,Moneygram