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Log Grapples
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Grapples for excavators
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How to add grapples to backhoes,
excavators, boom trucks and grapple trucks.
Example of grapple used on
mini-excavator, and Gradall Loader
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The Valby Grapples can be used to
update log loaders to the modern bypass design. They are also used to convert compact excavators, backhoes and telescopic loaders for log loading use.
The grapples can also be used as components for other log loading machinery such as
skid steer loaders.
VALBY Log Grapples
|
GR28 |
GR36 |
GR50 |
GR50 HD |
GR55 |
GR55HD |
| Max. gripping width |
28" |
36" |
50 ¾" |
50 ¾" |
55" |
55" |
| Min. opening |
1 ¼ |
1 ½" |
3 ½" |
3 ½" |
1 ¼" |
1 ¼" |
| Max. lifting capacity |
1320 lb. |
2200 lb. |
3080 lb. |
3960 lb. |
4400 lb. |
5500 lb. |
| Height. open |
23 ½" |
33 ¾" |
26 ¼" |
26 ¼" |
30 ½" |
30 ½" |
| Height. closed |
12" |
17" |
19 ½" |
20" |
20" |
20" |
| Width of wider claw |
10 ¼ |
10" |
11" |
11 ½" |
11 ½" |
12 ½" |
| Working pressure |
2900psi |
2900 psi |
2900 psi |
2900 psi |
2900 psi |
2900 psi |
| Jaw material |
Raex 640 |
Raex 640 |
Raex 640 |
Hardox |
Hardox |
Hardox |
| Weight |
97 lb |
110 lb. |
209 lb. |
231 lb. |
304 lbs. |
376 lbs. |
| Recommended Rotator: |
R3 |
R3 |
R45 |
R45 |
R55 |
R55 |
Links to more detailed information, pictures, and prices:
| |
GR60 |
GR60HD |
GR75 |
GR75HD* |
GR100 |
GR100HD* |
GR120HD* |
| Max. opening |
60 ½" |
60 ½" |
74 ¾" |
74 ¾" |
96 ½" |
96 ½" |
123" |
| Min. opening |
3 ½" |
3½" |
4"" |
4" |
6" |
6" |
7" |
| Lifting capacity |
6600 lb. |
11,000 lb. |
11,000 lb. |
15,400 lb. |
15,400 lb. |
22,000 lb |
33,000 lb |
| Height open |
31" |
31" |
38" |
38" |
41 ¾" |
41 ¾" |
62" |
| Height closed |
20 ¾" |
21 ¼" |
26 ½" |
26 ½" |
31" |
32 ½" |
41" |
| Width |
16 ¼" |
20" |
18 ½" |
21" |
22" |
24 ¾" |
40" |
| Working press |
3625 psi |
4351 psi |
3625 psi |
4351 psi |
3625 psi |
4351 psi |
4351 psi |
| Jaw material |
Hardox |
Hardox |
Hardox |
Hardox |
Hardox |
Hardox |
Hardox |
| Weight |
440 lb. |
563 lb. |
761 lb. |
805 lb. |
1165 lb. |
1500 lb. |
3300 lb. |
| Recommended Rotator: |
R6 |
R12 |
R12 |
R12 |
R12S |
R12S |
SDR 20.2 |
* May be special Order check for
availability
- The jaws in quality log grapples are made of Hardox steel.
- Every joint in a Valby grapple has a grease fitting and a bronze bushing.
- The Valby grapples have powerful cylinders with heavy pistons.
- Twin connection rods provide good balance and less stress.
- A belly plate protects the cylinder from
below.
- The Valby grapples are of modern bypass grapple design that support
the log from underneath and both sides.
- The Valby bypass grapples enable smooth roll in of the stems.
The jaws close to a tight minimum opening.
Click here for rotators
Click here for hangers
Click here for the half-hanger
Click here to download a short video showing the
Valby GR50 Grapple and R 45 Rotator.
Intermercato Rotators
|
R 30 |
R 45 |
| Rotation: |
Unlimited
in either direction |
| Max. load |
6600 lb. |
9900 lb. |
| Max working pressure |
3625 psi |
3625 psi |
| Torque |
516 ft. lb./2320 psi |
737 ft. lb./2320 psi |
| Weight: |
41 lb. |
61 lb. |
| Has pin to fit grapple hanger with
hole of: |
1" |
1" |
|
R 6 |
R12 |
| Rotation |
Unlimited
in either direction |
| Max. Load |
13000 lb. |
26400 lb. |
| Max. working
pressure |
3625 psi |
3625 PSI |
| Torque |
1180 ft. lb/2900 psi |
1900 ft. lb./2900 PSI |
| Weight |
105 lb. |
138 lb. |
| Has pin to fit
grapple hanger with hole of: |
1 3/8" |
1 3/8" |
| Click for photos and
details |
R6 |
R12 |
ROTATORS
WITH AXLES
Hook up
Dimensions in inches. Measurements in
parentheses are in millimeters.
| Type |
A) Width of block
on top of the rotator |
B) Pinhole
diameter through rotator |
C) Axle diameter |
D) Pinhole
diameter to fasten grapple to rotator |
E) |
Thread |
| R 30 |
2.362” (60 mm) |
0.984” (25
mm) |
1.948” (49.5
mm) |
0.984” (25
mm) |
9.37” (238
mm) |
JIC ¾” 16 |
| R 45 |
2.874” (73 mm) |
0.984” (25
mm) |
2.322” (59
mm) |
1.181” (30
mm) |
9.99” (254
mm) |
JIC ¾” 16 |
ROTATORS
WITH FLANGES
|
|
| The distance
across the bolt holes is 6 13/16”. The
bolt diameter is 5/8”, or 16mm. |
| Type |
A) Inside width of
the bracket |
B) Pinhole
diameter through rotator. |
C) Distance
across, between bolt holes |
E) |
Thread: |
| R 6 |
3.175” (80.5
mm) |
1.378” (35
mm) |
6.8” (173 mm) |
11.417” (290
mm) |
JIC ¾” 16 |
| R 12 |
3.189” (81
mm) |
1.378” (35
mm) |
6.8” (173 mm) |
11.968” (304
mm) |
JIC ¾” 16 |
Hangers
It is necessary to install a hanger between the rotator and
the lifting boom. The hanger enables the grapple to swing in two directions which
reduces stress. For more information on hangers, click here.
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