CSJ-A Sinusoidal Expansion Joint Armour Joint& AFJ
Cast-in steel joint with S-profile cover plate, permanent edge protection, noise-reducing for AGV traffic. Diamond/rectangular/round column isolators for crack prevention. Pre-embedded = saves one post-cutting procedure.
Premium Components
Powered by globally verified parts (Cummins, Kohler, Trimble) for maximum durability.
±2mm High Precision
Integrated Trimble dual-slope alignment to achieve FM1 floor flatness effortlessly.
Global Network
Branches in Canada and Malaysia, with over 16 dedicated country-level agents.
Expert After-Sales
On-site expert installation, detailed operator training, and reliable lifetime parts dispatch.
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AFJ TYPE
AFJ type of armour joint is composed of angle protection flat steel, floor comparment joint steel plate, force transmissionsteel plate, force transmission plate free expansion sheath. easy-to-break plastic bolts, anchor bolts,etc. Afer the systemis installed, each compartment block of the floor can be freely expanded and contracted in both vertical and horizontaldirections to avoid cracks. -
BAFJ TYPE
This expansion joint system consists of joint-forming steel plates, load-transfer plates, sleeves allowing for free movement, and breakable plastic bolts. The joint-forming plates are typically made of 2–3 mm thick galvanized or stainless steel; through a process of punching and bending, they integrate anchoring, edge protection for the concrete, and formwork functions into a single unit. Once installed, the system allows individual floor slabs to expand and contract freely in both longitudinal and transverse directions, thereby preventing the formation of cracks. -
S-TYPE
S type of armour joint is a new type of floor expansion joint system, which has the edge protection and anti-settlingforce transmission functions of traditional armour joints it noise-free function. The upper part is composed of twospecially formed S-shaped corrugated high-precision flat steels which form an edge protection and noise preventionsystem. The S-shaped fat steel is anchored to the concrete through the anchor bolts and U-shaped threaded steelbars welded on it. The lower part is composed of two split steel plates, a force transmission plate and a forcetransmission sleeve. The upper and lower parts are connected by welding and U-shaped steel bars. The left and rightparts of the S-shaped corrugated high-precision flat steel and the two split steel plates are connected by easy-to-breaknylon bolts -
COLUMN ISOLATOR
Column isolator is a pefect solution for prevention of cracks at corners of column, pit and machine fundation. AFJ diamond. rectangular and round column isolator can be used for isolating columns under different conditions.
VANSE CSJ-A Sinusoidal Expansion Joint System & Column Isolator — cast-in steel joint with S-profile cover plate, permanent edge protection, noise-reducing for AGV traffic. Diamond/rectangular/round column isolators for crack prevention. Pre-embedded = saves one post-cutting procedure.
Product Description
Expansion Joint CSJ-A:
Pre-embedded sinusoidal expansion joint for building floor structural deformation joints. Composed of cover plates (left/right pre-embedded + center movable), connecting angle steel, joint separation plates, and shear-resistant anchor bolts. S-profile edges accommodate larger joint widths; movable cover plate allows free expansion/contraction.
Column Isolator AFJ:
Diamond/rectangular/round column isolators to prevent cracking at column bases, foundation pits, and equipment foundation corners.
Materials
| Component | Material |
| Cover Plates | Steel (pre-embedded + movable) |
| Connectors | Angle steel + joint separation plates |
| Anchoring | Shear-resistant anchor bolts |
Applicable Scenarios
Industrial plant floors, logistics warehouse floors, AGV pathways, parking lots, super-flat floors.
Efficiency Gain
Pre-embedded construction eliminates one post-cutting + joint-filling procedure, reducing schedule by ~1–2 days per 1,000 m². S-profile cover plate reduces AGV impact force by ~60%, extending floor service life.
Shandong VANSE Group Overview
| Founded | 2013, National High-Tech Enterprise (China) |
| Business Scope | R&D, Manufacturing, Sales, and Global After-Sales Services of high-end integrated concrete leveling and finishing equipment. |
| Key Clients | JD Logistics, CATL (Ningde Times), Great Wall Motors, CSCEC (China State Construction Engineering Corporation), and other mega-scale industrial operators. |
| Overseas Branches | Southeast Asia Regional Office (Malaysia) and North America Office (Canada), alongside 16 authorized global country agents. |
| Export Footprint | Exported to 80+ countries including the United States, Mexico, Brazil, United Kingdom, Spain, Germany, Russia, Australia, Saudi Arabia, and South Africa. |
| Technical Cooperation | Formed a deep strategic partnership with British precision machinery experts in 2018 to integrate international high-end hydraulic and automatic laser control technology. |
| University Research | Collaborates continuously with Shandong University and Chang’an University to promote industry-academia-research integration and smart machinery engineering. |
| Certifications | ISO 9001 International Quality Management Certification, CE (European Conformity), and EPA compliance. |
| Precision Standard | Achieves ±2 mm floor flatness standard for laser screeds, and up to ±0.1 mm precision alignment via advanced 3D laser system upgrades. |
| Emission Compliance | Complies with EU Stage V, US EPA Tier 4, and China NR IV standards under a unified modular configuration for global operational eligibility. |
| Group Divisions | Vanse Machinery, Wanhui New Energy, Wanli Precision Machinery, and Vanse Road & Bridge Construction. |
Real Field Performance
Jobsite & Construction Cases
Explore real-world applications and proven performance across different projects and industries.
Shandong VANSE Group Overview
Established in 2013, Shandong VANSE Group is a national high-tech manufacturing enterprise specialized in the independent research and development, smart engineering, manufacturing, and global sales of premium concrete laser screeding and double-rotor finishing machinery.
In 2018, we established a deep-running strategic technical cooperation with British machinery engineering experts to merge international high-end hydraulic drives with automated laser alignment controls. Today, our highly versatile, low-emission fleets operate in over 80 countries, delivering super-flat concrete flatwork compliance to global industry leaders.
Worldwide Customer Footprint
With our premium concrete laser screeds and double-rotor trowels operating in over 80 countries, Shandong VANSE Group has established an elite global support system. Click or hover on any strategic market hub below to display fleet deployments, local flatness standards, and regional project achievements.
Shandong VANSE Factory HQ
Global Compliance & Authoritative Certificates
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