Interface Heads

Intercon couplers can be customized for various types of service. There are three styles of interface heads that mount to the ram and provide connection to a barge’s ladder surfaces.

Intercon Coupler Nominal Data

Imperial Units/ Metric Units

Model 21 Model 34 Model 50 Model 64
Specifications
Drive Single Speed Electric C-Drive C-Drive Two Speed Electric C-Drive Two Speed Electric
Max. Tug Displacement 400 LT 1250 LT 2300 LT 2300 LT 4200 LT 4200 LT
Max. Significant Wave Height 16.4 ft 23.0 ft 23.0 ft 23.0 ft 23.0 ft 23.0 ft
Ram Diameter 21″ 34″ 50″ 50″ 64″ 64″
Approx. Installed Weight 24,000 lbs 100,000 lbs 225,000 lbs 260,000 lbs 350,000 lbs 365,000 lbs
Interface Head (Helmet) Options Star Star or Single-Sided Wave Single-Sided Wave Tooth-Friction Single-Sided Wave Tooth-Friction
Engagement Force Generated 100,000 lbs 200,000 lbs 300,000 lbs 200,000 lbs 300,000 lbs 300,000 lbs
Max. Rate of Travel 63 IPM 40 IPM 72 IPM 150 IPM 15 IPM 118 IPM
Minimum Installation Envelope (Tug)
Beam 14 ft 27 ft 32 ft 32 ft 36 ft 36 ft
Bow to Stern 5 ft 9 ft 12 ft 12 ft 12 ft 12 ft
Height 6 ft 8 ft 8 ft 8 ft 9 ft 9 ft

Approximate Performance

Model 21 Model 34 Model 50 Model 64
Specifications
Drive Single Speed Electric C-Drive C-Drive Two Speed Electric C-Drive Two Speed Electric
Max. Tug Displacement 410 Metric Tons 1275 Metric Tons 2350 Metric Tons 2350 Metric Tons 4275 Metric Tons 4275 Metric Tons
Max. Significant Wave Height 5m 7m 7m 7m 7m 7m
Ram Diameter 533.4mm 863.6mm 1270.0mm 1270.0mm 1625.6mm 1625.6mm
Approx. Installed Weight 11,000 kg 45,500 kg 102,000 kg 118,000 kg 159,000 kg 166,000 kg
Interface Head Options Star Star or Single-Sided Wave Single-Sided Wave Tooth-Friction Single-Sided Wave Tooth-Friction
Engagement Force Generated 445 kN 890 kN 1,335 kN 890 kN 1,335 kN 1,335 kN
Rate of Travel 1.6 m/min 1.0 m/min 1.8 m/min 3.8 m/min 0.4 m/min 3.0 m/min
Minimum Installation Envelope (Tug)
Beam 4.27m 8.23m 9.76m 9.76m 10.98m 10.98m
Bow to Stern 1.53mm 2.75m 3.66m 3.66mm 3.66mm 3.66mm
Height 1.83m 2.44m 2.44m 2.44m 2.75m 2.75m

Approximate Performance

Interface Heads

Star

Tooth-Friction

Wave


• Star Helmet – Basic interface head for Model 21 and Model 34 couplers. The star profile supports easier alignment when the tug engages the barge, and allows for limited lightering operations.
• Single Sided Wave Helmet – Advanced lightering interface head for Model 34, Model 50 and Model 64 couplers. When fully engaged the wave pattern ensure vertical locking between tug and barge. When minimally retracted, tug and barge may lighter without fully disengaging the connection. This interface type allows for lightering while the vessels are under way.
• Tooth-Friction Helmet – Basic interface head for Model 50 and Model 64 couplers. The helmet may be engaged with the teeth oriented fore and aft to lock vertical engagement between tug and barge. When the helmet is engaged with the friction plates oriented fore and aft the tug and barge are able to lightering while in calm seas.

Coupler Drives

Two types of coupler drives are offered. The Standard Drive (multi-motor) style incorporates a high speed motor for rapid ram travel, and a low speed motor to develop high engagement forces at a slower travel. The C-Drive style incorporates one electric motor for rapid travel which provides initial engagement. Hydraulic pressure then develops high engagement forces. Both types of drive provide mechanical engagement to keep the vessels connected even if power is lost.

Intercon welcomes your inquiry regarding the type of connection and drive that would best serve your ATB mission. Application analysis, coupler sizing, and model testing support, if needed, are provided by Intercon’s Engineering Department.