Jingtong China Culvert Rubber Airbag Inflatable Rubber Balloon for Culvert

• Customization: Available
• Usage: Industrial
• Material: Natural Rubber
• Model NO.: JT-RCB-01
• Tensile Strength: >12MPa
• Tolerance of Thickness: 3.0+/-0.2
• Length: 0.5m to 28m
• Hardness: 60+/-5 Shore a
• Delivery: Within 7-10 Days After Payment
• Feature: High Compressive Strength, Good Flexibolity, Stron
• Transport Package: in Roll, in Bags, on Ballet
• Specification: black
• Trademark: HengJingGong
• Origin: Hebei, China
• HS Code: 40159500
• Production Capacity: 10000
• Package Size: 30.00cm * 30.00cm * 40.00cm
• Package Gross Weight: 20.000kg

Product Description

Product Description

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.

Production Process

The production process of rubber inflated culvert balloon is divided into two types: cold bonding process and hot pressing vulcanization process.

    *The cold bonding process involves first processing the raw materials into sheets (or purchasing finished rubber sheets), then cutting them into corresponding pieces according to the shape of the inflatable core mold, and finally adhering them together with adhesive to form the inflatable core mold.
    *The hot-press vulcanization process involves directly vulcanizing natural rubber under heat and pressure, combined with anti-tear fabric, to form the specified shape of the inflatable core mold in a single molding process without any seams.

Function

*Forming Core: Inflates to form the pre-set cavities in concrete components, such as circular, oval, octagonal shapes, etc.

*Supporting Concrete: Possesses sufficient strength after inflation to reliably support the lateral pressure and self-weight of fluid concrete during pouring, preventing deformation.

*Easy Demolding: After the concrete initially sets, it deflates and contracts, reducing in volume, allowing it to be easily pulled out from the component, simplifying the demolding process.

*Reusable: Designed for durability, under normal use and maintenance conditions, a single product can typically be reused multiple times (e.g., dozens to hundreds of times), offering significant economy.

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.

The cross-sectional shape of the inflatable rubber airbag

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 can you buy from us?
Bridge Bearing Pad,Seismic isolation bearing,Expansion Joint,Rubber Inflatable Airbag,Waterstop Belt/Strip,Steel Expansion Joint,Butyl Tape

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

7. Do we have quality guarantee?
Of Course!.
--from raw material to manufacturing, we have rigid quality control.
--before delivery, we have strict quality inspection.
--Third party inspection is also available at your request.
--We also have ISO, CE certificates.