Round Duct Shrimp Elbow Forming Machine with Dual Workstations
Dual Independent Workstations: Features an integrated lock forming station for male/female (single/double hem) edge profiling on the left and a dedicated lock seaming station on the right, enabling seamless two-stage round duct elbow production on a single machine.
100% Direct Gear Drive Mechanism: Driven by dual gear transmission motors without rubber belts, completely eliminating slip, power loss, and belt maintenance while delivering constant seaming torque.
Overview & Dual-Workstation Elbow Forming
The Round Duct Shrimp Elbow Forming Machine with Dual Workstations (Model: J-Y9) is an electric gorelocker machine purpose-built for round duct elbow shaping and lock seam closure in ventilation, air conditioning, and dust extraction systems[cite: 166]. It combines two specialized stations into one compact chassis: a flange hemming station on the flat tabletop and an elbow seaming station on the vertical support arm[cite: 164, 166].
Driven entirely by heavy-duty gears instead of rubber belts, this machine delivers positive torque transmission, high structural durability, and uniform seaming pressure[cite: 166]. It effortlessly fabricates segmented round duct elbows (45°, 60°, and 90°) with diameter capacities ranging from Φ100 mm to Φ1250 mm on galvanized sheet metal up to 1.2 mm thickness[cite: 166, 168].
Precision Mechanics & Dual-Station Architecture
- Full Gear Drive Transmission: Direct gear motor coupling avoids belt stretching, slippage, and degradation, ensuring steady continuous rolling and consistent flange geometry[cite: 166].
- Hardened GCr15 Forming Rollers: Heavy alloy tool steel rollers resist surface abrasion and indentation, delivering uniform lock profile joints without zinc coating peeling[cite: 166].
- 4 mm Stainless Steel Worktable: Polished heavy-gauge stainless steel deck prevents workpiece scratching and provides rigid sheet alignment during manual feeding[cite: 166].
- Independent Dual Foot Switches: Separate foot controls allow the operator to adjust, jog, and lock workpieces hands-free at either forming or seaming stations[cite: 165, 166].
Elbow Fabrication Process & Engineering Blueprint

5-Step Elbow Fabrication: Cutting → Welding → Single Lock → Double Lock → Seaming[cite: 168]

J-Y9 Specifications, Motor Drive Layout & Standard Configurations[cite: 166]
Technical Parameters (J-Y9 Series Electric Gorelocker)
| Specification Item | Standard Parameters (J-Y9) | Engineering Details & Hardware |
|---|---|---|
| Machine Model | J-Y9[cite: 166] | Electric dual-workstation duckbill elbow machine[cite: 166] |
| Sheet Thickness Range | 0.4 mm – 1.2 mm[cite: 166] | Galvanized steel sheet, stainless steel, and aluminum[cite: 166] |
| Elbow Diameter Capacity | Φ100 mm – Φ1250 mm[cite: 166] | Supports 45°, 60°, and 90° multi-segment round duct elbows[cite: 166, 168] |
| Total Motor Power | 3.0 kW[cite: 166] | Two dedicated Nanjing Wolp gear-reduction motors[cite: 166] |
| Forming Roller Material | GCr15 Bearing Steel[cite: 166] | Precision ground and hardened for long wear resistance[cite: 166] |
| Worktable Surface | 4 mm Stainless Steel[cite: 166] | High-durability non-marring smooth tabletop surface[cite: 166] |
| Clamping Arm Control | Manual Locking Control[cite: 166] | Rigid pivot arm with precision adjustment handwheel[cite: 164, 166] |
| Electrical Control & Footswitches | Chint Electricals & Dual Foot Switches[cite: 166] | Dual inverters for independent speed setting of each station[cite: 169] |
| Overall Weight & Dimensions | 500 kg | 2000 × 1000 × 1000 mm[cite: 166] | Compact footprint with rigid floor-mounting base plates[cite: 164, 166] |
Workstation Mechanics, Controls & Factory Showcase
Pneumatic Regulator, Dual Inverters & Hemming Station[cite: 169]
GCr15 Hemming Rollers & Quick Adjustment Guide Arms[cite: 166, 170]
Factory Inspection View with Connected Dual Foot Switches[cite: 167]
Full Front Working Angle with Handwheel & Arm Support[cite: 171]
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