Product Manual

Footer 21
21
Air Chain
Hoists
ingersollrandproducts.com/liing
7700 Series and 7790 Series Specifications
Model
Capacity
# Falls
Hook Mount
Headroom
Trolley Mount
Headroom
Liing Speed Lowering Speed
Chain
Size
Chain Weight
(per foot of li)
Net Weight
w/10  of Li
metric
tons
Rated Load No Load Rated Load No Load
lb in mm in mm /min m/min /min m/min /min m/min /min m/min lb kg lb kg
7770E 275 0.125 1 17 431.8 16.9 429.3 110 33.5 192 58.5 275 83.8 159 48.5 0.25 x 0.75 0.6 0.3 41 18.6
7718E 550 0.25 1 17 431.8 16.9 429.3 82 25 184 56.1 224 68.3 153 46.6 0.25 x 0.75 0.6 0.3 41 18.6
7756E 1,100 0.50 1 17 431.8 16.9 429.3 41 12.5 72 22 112 34.1 60 18.3 0.25 x 0.75 0.6 0.3 41 18.6
7776E 2,200 1 2 21.7 551.2 20.5 520.7 21 6.4 36 11 56 17.1 30 9.1 0.25 x 0.75 1.7 0.5 53 24
7790A 2,200 1 1 18.9 480.1 15 381 26 7.9 37 11.3 44 13.4 31 9.5 0.312 x 0.858 0.9 0.4 62 28.1
7792A 4,400 2 2 22.4 569 18 457.2 12 3.7 20 6.1 24 7.3 17 5.2 0.312 x 0.858 1.8 0.8 81 36.7
Working pressure from 5 to 7 bar (70 to 100 psi). Air consumption @ rated load - all models 1.98 m (70 cfm). Air inlet 1/2” NPT. Sound level 85 dBA.
Trolley Mount Specifications
Model
Trolley
type
Capacity
metric tons
Minimum
Headroom
Trolley Speed at
Rated Load
Air Consumption @
Rated Load
Trolley Flange
Adjustment
Minimum Curve
Radius Air Inlet
Net Weight
w/10  of Li
in mm /min m/min 
3
/min m
3
/min in mm  m lb kg
7770E Plain 0.125 17 432 - - - - 2.66-12 68-305 3.5 1.1 - 88 40
Geared 0.125 17 432 - - - - 2.66-12 68-305 3.5 1.1 - 91 41
Motor 0.125 17 432 96 30 35 1 2.66-12 68-305 3.5 1.1 1/4 94 13
7718E Plain 0.25 17 432 - - - - 2.66-12 68-305 3.5 1.1 - 88 40
Geared 0.25 17 432 - - - - 2.66-12 68-305 3.5 1.1 - 91 41
Motor 0.25 17 432 95 29 35 1 2.66-12 68-305 3.5 1.1 1/4 94 43
7756E Plain 0.50 17 432 - - - - 2.66-12 68-305 3.5 1.1 - 88 40
Geared 0.50 17 432 - - - - 2.66-12 68-305 3.5 1.1 - 91 41
Motor 0.50 17 432 95 29 35 1 2.66-12 68-305 3.5 1.1 1/4 94 43
7776E Plain 1 22 559 - - - - 3.25-12 82-305 3.5 1.1 - 100 45
Geared 1 22 559 - - - - 3.25-12 82-305 3.5 1.1 - 103 47
Motor 1 22 559 93 28 35 1 3.25-12 82-305 3.5 1.1 1/4 106 48
7790A Plain 1 15 381 - - - - 3.00-12 76-305 3.5 1.1
- 104 47
Geared 1 15 381 - - - - 3.00-12 76-305 3.5 1.1 - 107 49
Motor 1 15 381 93 28 35 1 3.00-12 76-305 3.5 1.1 1/4 110 50
7792A Plain 2 20 508 - - - - 3.00-12 76-305 3.5 1.1 - 123 56
Geared 2 20 508 - - - - 3.00-12 76-305 3.5 1.1 - 126 57
Motor 2 20 508 80 24 35 1 3.00-12 76-305 3.5 1.1 1/4 129 59
Working pressure from 5 to 7 bar (70 to 100 psi).
Continuous heavy-duty applications
7700 Series — 500 to 1,500 lb capacities
7790 Series — 1,500 to 3,000 lb capacities
7700 Series and 7790 Series spark-resistant hoists are designed for Division 1
applications where, under normal operating conditions, the atmosphere contains
hazardous concentrations of flammable gases, dust, or other materials.
Specifically engineered for continuous heavy-duty industrial applications —
between 500 and 3,000 lb — Ingersoll Rand 7700 Series and 7790 Series
spark-resistant hoists are available with bronze top-hook or trolley adapter
suspension. These hoists come complete with 10 feet of standard li and 6 feet
of either pendent control or pull-chain control.
Features
• Stainless steel load chain and solid bronze hooks prevent accidental sparking
• Pendent control handles, when ordered, are covered with an industrial-grade
vinyl grip; pull-chain controls come standard with zinc-plated pull chain
• Hoist capacities are reduced and speed adjustments are locked into place to
maximize chain life
• Trolley models are supplied with bronze wheels
Division 1 and 2 applications
The following definitions may be used as
a guide. The actual division distinction for
each application must be determined by
your local inspecting authority.
Division 1 (spark-resistant air hoists are
required)
Atmospheres containing hazardous
concentrations of flammable gases, dusts,
or fibers; continuously, frequently, or
periodically; under normal operating
conditions.
Division 2 (standard air hoists are
required)
Normally non-hazardous atmospheres
in which a hazardous concentration of
flammable gases, dusts, or fibers occurs
when a container or handling system fails or
the ventilating system that normally keeps
the concentration non-hazardous fails.
7700 Series and 7790 Series link chain hoists
Spark-resistant models
7700 Series and 7790 Series Spark-resistant Specifications
Model
Capacity
# Falls
Hook Mount
Headroom
Trolley Mount
Headroom
Liing Speed Lowering Speed
Chain
Size
Chain Weight
(per foot of li)
Net Weight
w/10  of Li
metric
tons
Rated Load No Load Rated Load No Load
lb in mm in mm /min m/min /min m/min /min m/min /min m/min lb kg lb kg
7712EL 550 0.25 1 17 431.8 17.1 434.3 50 15.2 80 24.4 70 21.3 53 16.2 0.25 x 0.75 0.6 0.3 41 18.6
7714EL 1,500 0.68 2 22.7 576.6 21.3 541 16 4.9 26 7.6 16 4.9 12 3.7 0.25 x 0.75 1.2 0.6 48 21.8
7796AL 1,500 0.68 1 18.9 480.1 15 381 16 4.9 26 7.6 16 4.9 12 3.7 0.312 x 0.858 0.9 0.4 62 28.1
7798AL 2,400 1.1 2 22.4 569 18 457.2 12 3.7 19 5.8 12 3.7 9 2.7 0.312 x 0.858 1.9 0.9 81 36.7
7799AL 3,000 1.36 2 22.4 569 18 457.2 7 2.1 11 3.4 7 2.1 5 1.5 0.312 x 0.858 1.9 0.9 81 36.7
Working pressure from 5 to 7 bar (70 to 100 psi). Air consumption @ rated load - all models 1.98 m (70 cfm). Air inlet 1/2” NPT. Sound level 85 dBA.
Trolley Mount Specifications
Model
Trolley
type
Capacity
metric tons
Minimum
Headroom
Trolley Speed at
Rated Load
Air Consumption @
Rated Load
Trolley Flange
Adjustment
Minimum Curve
Radius
Net Weight
w/10  of Li
in mm /min m/min 
3
/min m
3
/min in mm  m Air Inlet lb kg
7712-EL Plain 0.25 17 432 - - - - 2.66-12 68-305 3.5 1.1 - 88 40
Geared 0.25 17 432 - - - - 2.66-12 68-305 3.5 1.1 - 91 41
Motor 0.25 17 432 96 30 35 1 2.66-12 68-305 3.5 1.1 1/4 94 43
7714EL Plain 0.68 22 559 - - - - 3.25-12 82-305 3.5 1.1 - 95 43
Geared 0.68 22 559 - - - - 3.25-12 82-305 3.5 1.1 - 98 45
Motor 0.68 22 559 93 28 35 1 3.25-12 82-305 3.5 1.1 1/4 101 46
7796AL Plain 0.68 15 381 - - - - 3.00-12 76-305 3.5 1.1 - 104 47
Geared 0.68 15 381 - - - - 3.00-12 76-305 3.5 1.1 - 107 49
Motor 0.68 15 381 93 28 35 1 3.00-12 76-305 3.5 1.1 1/4 110 50
7798AL Plain 1.1 20 508 - - - - 3.00-12 76-305 3.5 1.1 - 123 56
Geared 1.1 20 508 - - - - 3.00-12 76-305 3.5 1.1 - 126 57
Motor 1.1 20 508 93 28 35 1 3.00-12 76-305 3.5 1.1 1/4 129 59
7799AL Plain 1.4 20 508 - - - - 3.00-12 76-305 3.5 1.1 - 123 56
Geared 1.4 20 508 - - - - 3.00-12 76-305 3.5 1.1 - 126 57
Motor 1.4 20 508 84 25 35 1 3.00-12 76-305 3.5 1.1 1/4 129 59
Working pressure from 5 to 7 bar (70 to 100 psi).