Manfrotto upper clamp for 545B/546B stands R545,06 compatible with Manfrotto 545B 546B

The Manfrotto upper clamp R545,06 is a replacement clamp designed for use with Manfrotto 545B and 546B light stands. It restores the locking function at the upper section of the stand, securing telescopic sections during extension and collapse. The component is intended for situations where the original clamp is worn, damaged or missing and a direct, compatible replacement is required to maintain safe and reliable stand operation in studio and on-location environments.

Advantages

This upper clamp provides a precise mechanical lock for the top section of 545B and 546B stands, ensuring stable positioning of mounted equipment. Manufactured to match the fit and function of the original part, it allows quick replacement without modifying the stand. The clamp resists common field wear and enables consistent telescopic movement and repeatable locking performance across multiple cycles.

Suitable for

• Replacing a worn or broken clamp on Manfrotto 545B stands
• Replacing a worn or broken clamp on Manfrotto 546B stands
• Field repairs and maintenance of lighting stands
• Studio setups requiring reliable stand locking for lights and modifiers

Key specifications

• Compatibility: upper section of Manfrotto 545B and 546B light stands
• Function: mechanical clamp for telescopic section locking
• Material: durable metal/plastic construction designed for stand hardware use
• Mounting: direct replacement fit for the original upper clamp geometry
• Environment: suitable for studio and location use

How to use

To replace the upper clamp, collapse the stand to a safe working height and remove any mounted equipment. Unscrew or release the existing fasteners holding the damaged clamp, remove the old clamp, and position the R545,06 replacement so that the clamp aligns with the tube and locking mechanism. Reinstall the original fasteners or use compatible hardware, tighten to the manufacturer-recommended torque, then test telescopic extension and locking under load-free conditions before mounting equipment. Confirm smooth movement and secure locking through several cycles.

Usage recommendations

Regularly inspect the clamp and adjacent stand sections for signs of wear, cracks, or loosening. Keep threads and contact surfaces clean and free of grit; apply suitable thread locking or mild lubricant only where specified by the stand manufacturer. Replace the clamp if deformation or performance loss is observed to maintain safe operation when supporting lighting equipment.