Kupo KCP-354-4in Steel Spring A Clamp

$10.00 /day

Premium heavy-duty 4-inch ( $100\text{mm}$ ) steel spring A-clamp, engineered by industry-standard Kupo, now available for rental in Hong Kong. Features high-tension spring steel jaws with non-slip protective rubber coated tips to secure paper backdrops, gel filters, flags, or bouncing boards firmly with zero marks. (Note: This rental package covers spring clamps only; stands and backdrops are available separately.)

A 10% damage waiver fee will be applied to your order in the rental basket unless proof of own insurance can be supplied.

The Kupo KCP-354 4in Steel Spring A-Clamp (1 Pcs)—universally referred to on fast-paced film and photo sets as a 4″ Spring Clamp or A-Clamp—is an absolute fundamental, highly reliable rigging utility designed for gaffers, commercial photographers, and studio crews, making it a high-frequency asset for equipment hire in Hong Kong. Engineered to deliver massive mechanical holding power where lightweight plastic clips snap or slip, this heavy-duty nickel-plated steel clamp pair utilizes a high-tensile internal coil spring to lock studio materials tightly in place.

When executing an equipment hire for commercial portrait setups, fashion lookbooks, or complex video interview layouts in Hong Kong, maximizing set safety and material tension is paramount. The KCP-354 stands out with its ergonomically contoured handles and jaws pre-loaded with durable, non-slip PVC rubber coated tips. These protective jackets ensure that delicate seamless paper backdrops, expensive diffusion gels, or polyboards are held with extreme friction without experiencing physical puncture, tearing, or metallic scratch marks under prolonged use.

Applicable Scenarios:

Securing Seamless Paper Backdrops: Clamps onto horizontal background crossbars inside production spaces in Kwun Tong or Chai Wan to prevent heavy paper rolls from unraveling under gravity.
Rigging Lighting Gels and Diffusion Sheets: Clips colored filters or tough diffusion sheets cleanly onto the barn doors of hot continuous lights or studio strobe frames.
Securing Bounce Boards and Foam Cores: Locks portable white foam cores, reflectors, or black showcards securely onto standard C-Stand arms or auto-poles inside corporate workspaces in Central.

High-Tensile Industrial Coil Spring: Heavy-duty internal steel coil delivers intense, consistent clamping pressure that naturally resists sudden material slipping or shifting under load.
Non-Slip Protective Rubber Coated Tips: Jaws and handles are wrapped in high-durability black PVC rubber jackets to protect delicate surfaces, backdrops, and hands from mechanical scraping.
Rugged Nickel-Plated Steel Construction: High-strength cold-rolled steel build handles extreme mechanical stress, resisting rust, corrosion, and harsh on-set handling.
Generous 4-Inch (100mm) Total Frame Length: Compact jaw footprint profile yields a generous maximum opening width of approximately 50mm, perfectly optimized for standard grip bars and tabletop surfaces.
Integrated Safety Ergonomic Handles: Form-fitting handles allow assistants to squeeze and apply pressure cleanly with maximum leverage and minimal hand fatigue.

Kupo KCP-354 4″ Steel Spring A-Clamp x1
(Note: This rental listing covers the two standalone spring clamps only. C-Stands, background crossbars, seamless background paper rolls, and diffusion frames are available for add-on rent separately at our Hong Kong studio.)

Q: Are the vertical light stands, background crossbars, or diffusion rolls included inside this rental package?
A: No, they are not. This specific rental listing covers standalone Kupo KCP-354 4-inch steel spring clamps only. It is intended for production teams who already have their own support gear or wish to build a custom kit allocation. If you require a complete framework, please remember to add matching C-Stands or backdrop crossbars to your Hong Kong gear allocation.
Q: Can these steel spring clamps withstand the heat of high-power continuous lighting fixtures?
A: The clamp body is made of rugged nickel-plated steel which handles high thermal limits perfectly. However, the protective black tips are made of PVC rubber. When clipping lighting gels directly onto the barn doors of powerful continuous lights, ensure the rubber tips are positioned away from direct contact with the hottest parts of the metal housing to prevent the protective jackets from melting.
Q: What is the main operational advantage of using these steel A-clamps over cheaper plastic hardware store clips?
A: Plastic hardware store clips feature weak spring mechanisms that quickly fatigue and crack under pressure, creating safety hazards if a heavy backdrop roll drops unexpectedly. These Kupo KCP-354 clamps are manufactured from high-grade structural steel with industrial-strength coils, providing exponentially higher jaw pressure and structural reliability that professional cinema sets demand.
Q: How is the rental fee calculated?
A: The rental fee is calculated on a 24-hour basis per rental period at Dream Scenes Studio Hong Kong.
Q: Is a deposit required?
A: Yes, a corresponding deposit is required for all equipment rentals in HK.
Q: What payment methods are accepted for the deposit?
A: We accept credit card authorization for the deposit, which is fast and convenient for local and international crews.