Our GLL Scaffolding Coupling Pin uses a unique double-grip engagement system, and its core advantage lies in the synergy between the 360° annular grip and the high-strength spring sheet. Experimental data shows that this design enables the connector to have a tensile strength of 12.5kN, which is 1.8 times that of traditional pin-type connectors. In a super high-rise building project in Tianjin, the construction team found through comparison that the scaffolding construction efficiency using GLL connectors increased by 42%, and the zero accident record has been maintained to this day.
GLL Scaffolding Coupling Pin surface treatment process also breaks through tradition and adopts three-layer composite coating technology: first hot-dip galvanizing for anti-corrosion treatment, then spraying ceramic wear-resistant layer, and finally applying self-lubricating coating. This process combination enables the connector to achieve an excellent performance of 1,000 hours of zero corrosion in the salt spray test, far exceeding the industry average of 300 hours. In the Qingdao Seaside Bridge project, the product successfully withstood the harsh test of the marine climate.
The innovation of our GLL Coupling Pin is reflected in their modular design concept. The products include three series: standard, eccentric adjustment and quick-disassembly, which can meet different construction needs:
Standard connectors: suitable for conventional straight pipe connections, and its self-centering function can control the installation error within ±0.5mm.
Eccentric adjustment type: equipped with ±8° angle adjustment function, it effectively solved the problem of curved scaffolding construction in a special-shaped building project.
Quick disassembly type: using patented quick disassembly mechanism, the disassembly time of a single piece is shortened to 3 seconds.
This design flexibility allows GLL Coupling Pin to perfectly adapt to various scaffolding systems such as bowl buckle, disc buckle, wheel buckle, etc.
FAQ
Q1: Is GLL Coupling Pin compatible with other brands of scaffolding pipes?
A1: Compatible with all 48.3mm diameter scaffolding pipes that meet the EN 74/BS 1139 standard. Customized services are available for non-standard sizes.
Q2: How to maintain to extend the service life?
A2: Regularly use GLL special lubricant to clean the threads to prevent sand and gravel from getting stuck in the locking mechanism; when the galvanized layer is damaged, it is necessary to promptly apply anti-corrosion paint.
Q3: Does it support bulk purchases and OEM customization?
A3: Supports a minimum order of 1,000 pieces, and can customize corporate LOGO, color and laser engraving services.
