
( Brand: Wti ), ( Manufacturer Part Number: 11768C )
The **WTI 11768C** is a high-performance, industrial-grade **variable frequency drive (VFD)** designed to deliver precision control, reliability, and efficiency in demanding motor-driven applications. Engineered for both new installations and retrofitting projects, this compact yet robust unit combines advanced digital signal processing with a user-friendly interface to optimize motor performance across a wide range of industries, including manufacturing, HVAC, water treatment, and material handling. With a **continuous output power rating of up to 115 kW (155 hp)** at 480V, the 11768C excels in driving three-phase AC induction motors while minimizing energy consumption through intelligent speed and torque regulation. Its **scalable architecture** allows for seamless integration with PLCs, SCADA systems, or standalone operation, making it versatile for both simple and complex automation setups.
At the heart of the 11768C lies a **high-resolution, 16-bit digital control system** that ensures smooth acceleration, deceleration, and dynamic braking, reducing mechanical stress on connected equipment while extending motor lifespan. The drive features **regenerative braking capabilities**, allowing for energy recovery in applications where deceleration is frequent, such as conveyors or elevators, thereby enhancing overall system efficiency. Its **PWM (Pulse Width Modulation) inverter technology** delivers low harmonic distortion, minimizing electromagnetic interference (EMI) and ensuring compliance with strict industrial standards like IEC 61800-3. For added protection, the unit incorporates **overcurrent, overvoltage, undervoltage, and overtemperature safeguards**, along with **fault diagnostics** that pinpoint issues with precision, reducing downtime and maintenance costs.
The **11768C s intuitive control panel** includes a **large, backlit LCD display** with a **menu-driven interface**, allowing operators to configure parameters such as speed, torque, and ramp rates with ease. Optional **remote control via Modbus RTU, Profibus, or Ethernet/IP** enables seamless integration into larger automation networks, while **analog and digital I/O ports** provide flexibility for custom control logic. The drive s **wide input voltage range (380 480V, 50/60Hz)** ensures compatibility with global power systems, and its **IP20 protection rating** (with optional IP54 enclosure) makes it suitable for both clean and mildly harsh environments. Additionally, the **11768C supports regenerative braking to the grid**, further enhancing energy savings in applications where energy feedback is beneficial.
Built for durability, the WTI 11768C utilizes **high-quality, heat-dissipating components** and a **fan-cooled design** to maintain optimal operating temperatures even under continuous heavy loads. Its **compact, modular form factor** allows for easy installation in tight spaces, while the **mounting options (rack, panel, or DIN rail)** cater to diverse system configurations. The drive s **low audible noise output** and **minimal vibration** contribute to a quieter, more comfortable operational environment. Whether deployed in **pump control, fan regulation, or conveyor systems**, the 11768C delivers **superior torque control, energy savings, and operational reliability**, making it an ideal choice for industries prioritizing performance, efficiency, and long-term cost-effectiveness.
### Pros and Cons of buying a **WTI 11768C** (Weller TIG Welder)
The **WTI 11768C** is a popular entry-to-mid-level TIG (Tungsten Inert Gas) welder known for its versatility and reliability. Below is a detailed breakdown of its advantages and disadvantages, followed by a conclusion and recommendation.
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### **Pros of the WTI 11768C**
1. **Versatility in Welding Processes**
- Supports **TIG (GTAW), Stick (SMAW), and MIG (GMAW) welding**, making it suitable for a wide range of projects, from thin metals to thicker materials.
- Can weld **aluminum, stainless steel, mild steel, and other non-ferrous metals**, which is ideal for hobbyists and professionals alike.
2. **AC/DC Dual Capability**
- The ability to switch between **AC (for aluminum) and DC (for steel)** expands its usability without requiring separate machines.
- AC mode provides excellent cleaning action for aluminum, reducing oxide buildup.
3. **Adjustable Amperage Range**
- Offers a **wide amperage range (10 200 amps)**, allowing for precise control over weld quality on different thicknesses.
- Suitable for both **thin sheet metal (e.g., 16-gauge) and heavier materials (up to -inch steel)**.
4. **Foot Pedal Control**
- Includes a **foot pedal for amperage adjustment**, which is crucial for smooth TIG welding, especially on aluminum and thin materials.
- Reduces hand fatigue during long welding sessions.
5. **Built-in High-Frequency (HF) Start**
- The **HF start system** makes it easier to initiate an arc, particularly useful for beginners struggling with manual TIG starts.
- Helps prevent tungsten contamination in the weld.
6. **Durable Construction**
- Made with **heavy-duty components**, including a **cast aluminum housing**, which enhances longevity and resistance to heat.
- The **water-cooled torch** (included) allows for extended welding without overheating.
7. **User-Friendly Features**
- **Digital amperage display** for precise settings.
- **Adjustable wire feed speed (for MIG mode)** and **gas flow control** for better weld quality.
- **Pilot arc mode** (optional) for easier starts on aluminum.
8. **Good for Beginners and Professionals**
- While not the most advanced welder, it provides **enough power and features** for beginners to learn TIG welding without breaking the bank.
- Professionals appreciate its **reliability and versatility** for small to medium-sized projects.
9. **Accessories Included**
- Comes with a **water-cooled torch, remote foot pedal, and essential accessories** (e.g., tungsten electrodes, gas hose), reducing the need for additional purchases.
10. **Compact and Portable (Compared to Larger Machines)**
- While not as portable as plug-and-play MIG welders, it is **smaller and lighter** than industrial TIG welders, making it easier to move around a workspace.
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### **Cons of the WTI 11768C**
1. **No Built-in Wire Feed for MIG (Requires External Unit)**
- The **MIG function is limited to short-circuit (globular) transfer**, which is not ideal for thicker materials or spray transfer.
- Users must **purchase an external wire feed unit** (e.g., a Miller or Lincoln MIG power source) for full MIG capabilities, adding to the cost.
2. **Water Cooling System Requires Maintenance**
- The **water-cooled torch and power source** require **regular maintenance** (checking coolant levels, replacing hoses, and preventing leaks).
- Users must ensure the **coolant is clean and properly circulated** to avoid overheating.
3. **No Built-in Torch Cooling Fan (On Some Models)**
- Some versions of the **11768C lack a built-in fan for the power source**, which can lead to **overheating in prolonged use** unless adequate ventilation is provided.
- A **separate cooling fan may be necessary** in high-heat environments.
4. **Limited Duty Cycle**
- The **10% duty cycle at 200 amps** means it can only weld continuously at full power for **10 minutes before cooling down**.
- This limits its use for **long, continuous welding sessions** without breaks.
5. **No Built-in Torch Height Sensor (THS) or Advanced Features**
- Lacks **automatic features like torch height sensor (THS) or pulse TIG**, which are found in higher-end welders (e.g., Miller Dynasty or Lincoln Square Wave).
- Beginners may find **manual adjustments more challenging** compared to modern, automated systems.
6. **No Built-in Plasma Cutting Capability**
- Unlike some multi-process welders (e.g., Lincoln Square Wave), the **11768C does not include plasma cutting**, limiting its versatility for cutting tasks.
7. **Slightly Noisy Operation**
- The **transformer-based design** can produce **more noise** compared to inverter-based welders, which are generally quieter and more efficient.
8. **Higher Initial Cost for Full Functionality**
- While the **11768C itself is reasonably priced**, adding **external accessories (e.g., MIG power source, additional torches, or cooling systems)** can increase the total investment.
9. **Learning Curve for TIG Welding**
- TIG welding is **more technically demanding** than MIG or stick welding, and the **11768C does not simplify the learning process** users must still develop hand-eye coordination and technique.
10. **Potential for Tungsten Contamination**
- Without proper technique (e.g., using the right tungsten type, maintaining proper gas flow), **tungsten can contaminate welds**, leading to defects.
- Beginners may struggle with **tungsten management** (e.g., breaking in, maintaining shape).
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### **Conclusion**
The **WTI 11768C** is a **well-rounded, versatile TIG welder** that excels in **AC/DC welding, precision control, and durability**. It is an **excellent choice for hobbyists, students, and professionals** who need a **reliable, multi-process welder** without investing in multiple machines. Its **wide amperage range, foot pedal control, and included accessories** make it a practical tool for a variety of projects.
However, its **limitations such as the lack of full MIG capabilities without an external unit, water cooling maintenance, and a moderate learning curve for TIG must be considered**. If you are primarily focused on **TIG and stick welding** and do not require advanced MIG features, the **11768C is a strong recommendation**. If you need **full MIG functionality, plasma cutting, or inverter-based efficiency**, you may want to explore alternatives like the **Miller Dynasty 352 or Lincoln Square Wave 450**.
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### **Final Recommendation**
**Buy the WTI 11768C if:**- You need a **versatile welder for TIG, stick, and basic MIG (short-circuit transfer)**.
- You work with **aluminum, stainless steel, or mild steel** and require **AC/DC capability**.
- You want a **durable, mid-range welder** that balances **performance and affordability**.
- You are **willing to invest in additional accessories** (e.g., external MIG power source) for full functionality.
**Consider alternatives if:**- You **primarily need MIG welding** (e.g., spray transfer for thicker materials) and want a **fully integrated multi-process welder**.
- You prefer **inverter-based efficiency, lower noise, and advanced features** (e.g., pulse TIG, plasma cutting).
- You **do not want to deal with water cooling maintenance** (though this is manageable with proper care).
**Overall, the WTI 11768C is a solid choice for those who prioritize TIG welding and need a reliable, multi-process machine.** With proper maintenance and technique, it will serve you well for years.
Part Number 11768C. All products are guaranteed to be working but may show signs of use if purchasing a used product. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. Call to use a shipping service other than the ones listed.
WTI 11768C / USED DISCONTINUED BY MANUFACTURER, PC BOARD. Sells new and surplus product develops channels to purchase such.