|
McKissick®
Oilfield Servicing Blocks |
| Page
286 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
 |
SEE
APPLICATION AND
WARNING INFORMATION
On Page 290-
297 |
|
|
|
|
|
|
|
|
|
|
| M-491 |
M-491 Tower/Derrick
Hoist Blocks
New design provides the dependability of standard McKissick® snatch
blocks, along with features that make it perfect for the tugger application. |
|
|
|
|
|
|
| |
|
- All blocks 14" and larger are furnished with McKissick®
Roll Forged sheaves with flame hardened grooves.
- 8" and 10" blocks are furnished with dual
rated wireline sheaves.
- Sealed tapered roller bearings extend the life of the
center pin and bearings, and allows for faster line speeds than recommended
with standard snatch blocks.
- Suitable for hoisting personnel, contingent upon all
employees, including the winch operator, being trained to follow any
applicable Federal, local and industry standards.
- Shackle fitting swivels for easy positioning.
- Forged steel swivels, tees, yokes and shackles are
Quenched and Tempered.
- Sheave lubrication through center pin for easy maintenance.
- A wide variety of configurations:
- 4, 8, 12 or 15 metric ton capacity
- 3/8", 7/16", 9/16", 5/8", 7/8"
and 1" wire line sizes
- Painted and Galvanized finish.
- Design factor of 4 to 1.
- Manufactured by an API Q1 Certified facility.
|
|
|
|
|
|
|
| |
.
| Working
Load Limit
(t) † |
Sheave
Dia.
(in.) |
Wire
Rope
Size
(in.) |
M-491
Stock No.
Painted |
M-491
Stock No.
Galvanized
|
Weight
Each
(lbs.)
|
4 |
8 |
3/8 - 1/2 |
2020161 |
2020170 |
35 |
8 |
10 |
3/8 - 1/2 |
2020806 |
2020815 |
55 |
8 |
10 |
1/2 - 9/16 |
2020824 |
2020833 |
55 |
12 |
10 |
1/2 - 9/16 |
2021118 |
2021127 |
55 |
12 |
14 |
5/8 |
2021136 |
2021145 |
95 |
12 |
14 |
3/4 |
2021154 |
2021163 |
95 |
15 |
16 |
7/8 |
2021172 |
2021181 |
150 |
15 |
16 |
1 |
2021190 |
2021199 |
150 |
†
Ultimate Load is 4 times the Working Load Limit.
|
|
|
|
|
|
| |
|
|
|
|
|
| |
 |
Copyright
© 2003 The Crosby Group, Inc. All Rights Reserved
|
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
