Tufflink ™ 360 ° Link Clamps
Double Acting Twin Lever Design Top Flange Mounted
Clamp on two parts with one link clamp. Top flange body can be manifold mounted or plumbed. Levers must clamp on flat surface. Levers sold separately. Optional in-port flow control is a meter-in device with reverse free flow check valve. Optional In The Port Sequence Valve is a sequencing device with reverse free flow check valve.
Available in 3 sizes, 4.89kN, 7.56kN, and 11.57kN total clamping force at 350 bar (35MPa). Significantly increased vertical clamping stroke over standard link clamp allows access to clamp through a hole onto the surface of work piece. Patented rotary lug feature delivers 360 degrees of lever/body positioning. This simplifies internal porting and fixture design flexibility. Load equalizing mechanism allows uniform clamping when work piece surfaces are within 1.5 mm.
Made possible by Vektek’s equalizing system!
D-4
U.S. Patent No. 8,678,362
* Clamp capacities are listed at 350 bar maximum operating pressure with a standard length link clamp lever installed. Total clamping force is divided equally between each side. Minimum operating pressure is 34.5 bar for double acting. The clamping force is adjustable by varying the hydraulic system pressure. Use of an extended length lever will result in a reduction of clamp force. (Actual force will vary slightly due to mechanical inefficiencies, and friction.) ** Equal to ±10° with standard lever. *** To ensure maximum service life and trouble-free operation, restrict fluid flow to the above flow ratings when clamping. If you are unable to measure flow rates, these devices should be positioned in no less than 1/2 second. These recommendations apply when using the standard lever. When using the optional extended lever or your custom lever, please restrict the flow rates to position the lever in no less than 1 second. **** In-port valves require the use of manifold mount ports.
Specifications
Port X Depth for Optional
Effective Piston Area (cm2 )
Oil Capacity (cm3 )
Vertical Clamping
Maximum Flow Rate (L/Min.) ***
Total Clamping Force (kN)*
Model No.
In-Port Valves ****
Stroke (mm)**
Extend Extend Retract Double Acting (D/A) Cylinders, actuated hydraulically both directions. 41-6215-20 4.89 4.57 1.77 2.31 0.84 0.28 G1/8 X 15.16 41-6218-20 7.56 6.09 2.54 4.24 1.31 0.51 G1/8 X 15.16 41-6222-20 11.57 7.36 3.98 8.37 3.05 1 G1/8 X 15.16
ILMV166016 REV A
Force equally divided between each side
10 CLAMP ANGLE
B
W UNCLAMP MANIFOLD PORT O-RING
Port Depth for Optional In-Port Valves: G1/8 X 15.16
T
C
Y
V
E
AG
AH
L
D
AA UNCLAMP PORT
AB CONTACT
Q POINT
X
A
P
Z
AA CLAMP PORT
R
AB CONTACT POINT
G
W CLAMP MANIFOLD PORT O-RING
AD
K THRU J
F
N TOTAL STROKE
S
H
M CLAMP STROKE
AF
For proper sealing, the mating surface must be flat within 0.0762 mm with a maximum surface roughness of 1.6 µm R a
ILMV166011 REV B
Dimensions (mm)
Model No. A B C D E
F G H J
K L M N P Q R
Double Acting (D/A) Cylinder, actuated hydraulically both directions. 41-6215-20 35.77 73.78 66 26.6 52 31.51 15.5 11.97 9.75 5.8 22.3 13.05 16.41 50 25 20 41-6218-20 39.77 83.98 75 32.7 58.5 32.5 15.5 14.97 11.25 6.8 21.3 16.65 22.07 62 31 25 41-6222-20 47.77 94.62 83 39.3 63.5 33 15.5 17.97 14.5 8.8 18.5 21 27 75 37.5 30
Model No. S T V
W X Y Z AAABADAFAGAH
Double Acting (D/A) Cylinder, actuated hydraulically both directions. 41-6215-20 20 61 25 ID 8.0 X CS 3.0 11 28 11 G 1/8 35 54 57.01 38.49 21.5 41-6218-20 25 72 31 ID 8.0 X CS 3.0 14 33 14 G 1/8 43.25 56 64.01 41.01 27 41-6222-20 30 86 37.5 ID 8.0 X CS 3.0 16 39 16 G 1/8 51.5 54 71.99 43.51 30.5
© Vektek December 2021
Inside US 1-800-992-0236
www.vektek.com
Made with FlippingBook - Online catalogs