• Can be fitted to tensioned rope (no access To rope termination required)
  • Bronze bush or H.D. Taper roller bearings on sheave.
  • Factor of safety 4:1
  • Test plate marked with SWL in head, line pull, FOS and
  • Unique serial number.
  • CE marked (SI1992: 3073) and tested LOLER (SI1998: 2307)
A

B

C

D

E

F

Wt

 

 

 

 

 

 

 kgs
330

160

83

82

70

27

3.5

340

245

100

120

69

32

6

385

300

135

155

70

34

8

450

342

145

160

93

49

14

495

390

173

206

93

47

18

730

580

260

310

123

65

54

750

575

270

310

127

66

57

970

770

345

398

73

62

120

1070

800

355

410

73

62

162

1080

920

400

510

73

62

300

500

n/a

173

206

93

47

18

730

n/a

260

310

123

65

55

NOTE: Maximum specified rope diameter must not be exceeded (advise of greater rope diameters). Smaller rope diameters may be fitted on temporary rigging, but sheave life may be affected (advise where longer term installations are required with smaller rope diameters).

Specifications

SWL on Head

Line Pull

Sheave

Groove to suit

Sheave

Head fitting
FOS 4

FOS4

diameter

rope dia. range

mounted on

type
2t

1t

 (76mm)

7 to 9mm

Bronze bush

Inverted shackle
4t

2t

 (114mm)

10 to 14mm

Bronze bush

Inverted shackle
4t

2t

 (152mm)

13 to 16mm

Bronze bush

Inverted shackle
8t

4t

 (152mm)

20 to 22mm

Bronze bush

Inverted shackle
8t

4t

(203mm)

20 to 24mm

Roller bearings

Inverted shackle
12t

6t

 (305mm)

24 to 26mm

Roller bearings

Inverted shackle
15t

7.5t

 (305mm)

24 to 28mm

Roller bearings

Inverted shackle
20t

11t

(406mm)

30 to 32mm

Roller bearings

Inverted shackle
30t

15t

(406mm)

32 to 36mm

Roller bearings

Inverted shackle
30t

15t

 (508mm)

32 to 36mm

Roller bearings

Inverted shackle
8t

4t

(203mm)

20 to 24mm

Roller bearings

Safety hook
12t

6t

 (305mm)

24 to 28mm

Roller bearings

Safety hook

Dimensions  & Weights

   Finished polyurethane reinforced enamel, colour red.

Detail Hinge Pin Retentions

  • Steel side plates and sheaves.
     
  • Hardened steel sheave and load pins.
     
  • Galvanised Safety bow shackle (RR-C-271D) on head
     
  • Or Forged alloy heat treated sling hook with latch.
     
  • Plain swivel on head for 360 degrees rotation
     
  • 180 degree plus pivot on head

·  Captured load pin with knurled release knob and R clip safety retaining pin. Grease nipple and grease-way on sheave pin.

  • Capacities form 2 tonnes to 30 tonnes
     
  • Groove option from 7mm to 30mm
     
  • Sheave diameters from 3 inches (75mm)  to 20 inches (508mm)
     
  • Shackle or eye hook on head fitting Bronze bush or taper roller bearings on sheaves

A range Heavy Duty, Lightweight snatch blocks for rigging, construction, oilfield and   marine operations. These blocks are of proven and trusted design, and include R clip hinge pin retention (as specified by many oilfield production companies).

SNATCH BLOCKS