KCD2L-M 60mm Cage-Style Right-Angle Adjustment Mount

Product Description

• Compatible with mounting Ø2-inch (Ø50.8mm) optical components at a 45° angle relative to the optical axis.
• Provides ±4° pitch and tilt adjustment.
• Compatible with 60mm cage systems and SM2 (2.035”-40) threads.
• Optional 4-40 threaded holes or Ø6mm through holes for installing Ø6mm cage rods.
• M4/M6 threaded holes on the sides for installing Ø12mm or Ø1-inch rods.
• KCD2L-M1A/KCD2L-M2 feature locking screws to secure the adjusters.

The cage-style right-angle adjustable mount provides ±4° pitch and tilt adjustment for optical components mounted on the mounting plate at a 45° angle to the horizontal. The mounting plate is compatible with Ø2-inch (Ø50.8mm) optical components with a minimum thickness of 4mm. The mount is equipped with 8 4-40 threaded holes or 8 Ø6mm through holes, spaced to match our 60mm cage system, enabling effective connection, adjustment, and locking of two such right-angle cage mounts within the cage system.

Specifications of 60mm Cage-Style Right-Angle Adjustment Mount	Details
Dimensions	76.2*76.2*76.2mm
Port Aperture	Ø50.9mm smooth port / SM2 threaded port
Adjustment Range	±4° pitch and tilt
Through Hole Spacing	60mm*60mm
Thread Type	M4/M6
Material	7075 aluminum alloy

 

Model	Parameters
KCD2L-M1	Connecting rod aperture: 4-40 threads; Weight: 429.4g
KCD2L-M1A (Lockable)	Connecting rod aperture: 4-40 threads; Weight: 434.4g
KCD2L-M2 (Lockable)	Connecting rod aperture: Ø6mm through hole; Weight: 433.4g

Technical Description

Optical Knowledge Point: Common Optical Thread Size Standards

This is a thread specific to Thorlabs Inc. (USA) and not a commonly used optical thread. “SM” is the code for sewing machine threads in thread notation, but this American company uses it for internal and external thread connections of optical lenses and sleeves. The thread type is UNS (Unified National Special Thread) with a tolerance class of 2A/2B. A unique feature of this thread is that regardless of the diameter, the pitch is 40 threads per inch (TPI). Specific dimensions are as follows:

Series	Type	Thread (in)	Nominal Diameter (mm)	Minor Diameter (mm)	Pitch Diameter (mm)	Major Diameter (mm)
SM05	Internal	0.535-40	13.59	12.98±0.07	13.24±0.05	＞13.59
SM05	External	0.535-40	13.59	＜12.78	13.10±0.05	13.50±0.05
SM1	Internal	1.535-40	26.29	25.68±0.07	25.95±0.05	＞26.29
SM1	External	1.535-40	26.29	＜25.48	25.79±0.05	26.19±0.06
SM2	Internal	2.535-40	51.69	51.08±0.075	51.35±0.075	＞51.69
SM2	External	2.535-40	51.69	＜50.87	51.18±0.05	51.59±0.05

Product Description

The cage-style right-angle adjustable mount provides ±4° pitch and tilt adjustment for optical components mounted on the mounting plate at a 45° angle to the horizontal. The pitch and tilt adjustments are actuated by three 100 TPI (Threads per Inch) adjustment screws, enabling smooth, high-resolution movement. Two of these adjustment plates include removable knobs, while the third must be adjusted using a 2mm hex wrench or ball-head screwdriver.

 

The mounting plate is compatible with Ø2-inch (Ø50.8mm) optical components with a minimum thickness of 4mm. Optical components are fixed using nylon-tipped screws on the side of the mount with a 2mm hex wrench or ball-head screwdriver. The side design does not limit the thickness of the optical components to be installed, and the installed optical components can still be operated even when the mount is equipped with cage rods or lens sleeves.

 

The ports are equipped with SM2 (2.035”-40) threaded holes, and the mount is equipped with 8 4-40 threaded holes or 8 Ø6mm through holes, compatible with our PCM-S series cage rods. Their spacing matches our 60mm cage system, enabling effective connection, adjustment, and locking of two such right-angle cage mounts within the cage system.

Connecting Rod Diagram:

Each side is equipped with one M4/M6 threaded hole for installing Ø12mm rods and Ø1-inch rods, suitable for free-space setups.

Assembly

Application Example

Engineering Drawing Download