Crosby Catalog - McKissick Blocks for Special Applications

McKissick Blocks for Special Applications

HAY FORK PULLEYS

161
HF-1
WITH SWIVEL HOOK

161
HF-2
WITH SWIVEL HOOK

Sheave Diameter & Block No.	Stock No.		Working Load Limit * (tons)	Standard Rope Size (in.)	End Fitting	Weight Each (lbs.)
Sheave Diameter & Block No.	Painted	Zinc Plated	Working Load Limit * (tons)	Standard Rope Size (in.)	End Fitting	Weight Each (lbs.)
4 1/2" HF-1	170022	170594	1	1 1/4 MR	Swivel Hook	6
4 1/2" HF-2	170086	170629	1	1 1/4 MR	Swivel Eye	6
4 1/2" HF-3	170148	170656	1	1/2 WL	Swivel Hook	6
4 1/2" HF-4	170200	170683	1	1/2 WL	Swivel Eye	6
8" HF-5	170264	170718	2	1/2 WL	Swivel Eye	11
6" HF-12	170380	170745	2	1 1/2 MR	Swivel Hook	11
6" HF-12	170442	170763	2	1 1/2 MR	Swivel Eye	11
6" HF-13	170503	170781	2	5/8 WL	Swivel Hook	11
6" HF-14	170567	170807	2	5/8 WL	Swivel Eye	11

* Ultimate Load is 4 times the Working Load Limit.
Rope Code: MR - Manila Rope, WL - Wire Line.

One piece pressed steel shells.
Edges well rounded to prevent chaffing of rope
Forged steel eyes and hooks.
Can be furnished with SS-4055 hook latch.
Furnished with roller bearings.
Pressure lube fittings.
Available Painted or Zinc Plated.

171 TONG BLOCKS

Sheave Diameter & Block No.	Stock No.	Working Load Limit * (tons)	Wire Rope Size (in.)	Weight Each (lbs.)	Connection
6" TB-1	171012	1/2	3/4	11	Swivel Eye
8" TB-1	171058	1	3/4	12	Swivel Eye
10" TB-1	171101	2 1/2	3/4	30	Swivel Eye
12" TB-1	171156	2 1/2	3/4	35	Swivel Eye

* Ultimate Load is 4 times the Working Load Limit.

Steel sheaves with roller bearings and pressure lubrication.
Forged steel eyes and hooks.
Easy opening feature shown available in 8" size only.

443 LAY DOWN BLOCKS

Sheave Diameter & Block No.	Stock No.	Working Load Limit * (tons)	Wire Rope Size (in.)	Weight Each (lbs.)	Type Block
4 1/2" 443	171414	1/4	1/2	12	Regular
6" 443	171432	1/4	3/4	17	Regular

* Ultimate Load is 4 times the Working Load Limit.

Used to lay down drill pipe.
All steel construction, steel sheaves mounted on antifriction bearings, grooved for maximum of 3/4" wire line.
Hook made to fit into end of drill pipe, handy dead end becket for returning block - hooks have handle for disengagement.

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