1.27.2026 / 6-minute read

Precision Coil Turning Workstation for Dry-Type Transformer Manufacturing

Overview

This project involved the custom development of a dedicated coil turning workstation for a global leader in power equipment manufacturing, specifically for a critical assembly stage in their dry-type transformer production line.

Building upon standard turning functionality, this unit integrates an articulating auxiliary table, built-in roller conveyors, and precision tooling holes to handle large transformer coils weighing up to 3 tons.

It ensures safe and efficient 90-degree rotation while optimizing workflow integration through meticulous design, making it a pivotal station that enhances overall assembly precision and operational smoothness.

Basic Parameters

Parameter Category	Specifications & Notes
Model	Customized Heavy-Duty Turning Station (Based on FZPT-3000)
Client Industry	High-End Power Equipment & Dry-Type Transformer Manufacturing
Core Function	Safe 90° turning and precise positioning of heavy coils
Max. Load Capacity	3000 kg (3 Tons)
Table Size	Main Table: 16001300mm (with 700700mm non-powered roller section) Auxiliary Table: 1300*1300mm (Retractable/Folding design)
Rotation Angle & Speed	90°, adjustable speed (≤60 seconds/cycle)
Drive System	4KW Electro-Hydraulic Power Unit, Φ90-70 Cylinder with throttle valve
Key Features	1. Articulating Auxiliary Table: Lies flat for loading, stands up as a side support during rotation. 2. Integrated Rollers: Allows easy horizontal adjustment/mating of the coil. 3. Tooling Hole Pattern: φ18mm holes on both sides (200mm spacing) for custom fixtures or safety bars.
Control & Electric	Independent control cabinet (Delixi components), adjustable speed, clean cable management
Safety Design	Hydraulic safety lock, mechanical hard stops, emergency stop control

Challenge

Complex Process Integration: The process requires frequent coil handling, placement/removal of supports before/after turning. Fixed tables cause inefficiency and interference risks.
High Post-Turn Alignment Demand: The turned coil must align precisely with downstream supports or gauges; any misalignment compromises final assembly quality.
Space & Ergonomics Optimization: Needed to combine turning, buffering, and fine-adjustment functions within a compact footprint, simplifying steps and reducing operator strain.
Customization & Reliability: The equipment must fit specific coil dimensions and workshop flow perfectly, maintaining stability under frequent, heavy-duty cycles.

Workflow

Preparation & Loading: The auxiliary table is in the flat position. The coil is placed on the main table’s rollers via crane and gently pushed against the alignment datum.
Auxiliary Setup & Securing: The auxiliary table is raised to form a 90° side support. Custom fixtures or stops can be added via the side tooling holes if needed.
Automated Turning: The machine is activated. The hydraulic system rotates the entire assembly smoothly through 90°.
Unloading & Reset: After turning, the coil is removed by crane. The system reverses, returning to the horizontal position with the auxiliary table lowered for the next cycle.

Solutions

Dual-Innovation Design: The retractable auxiliary table solves interference and access issues. The integrated rollers enable easy fine positioning of multi-ton coils, drastically improving setup efficiency.
Future-Proof Tooling Interface: The precision-machined hole pattern along the table provides limitless flexibility, allowing quick installation of product-specific fixtures, guides, or guards for fast changeover.
Performance Meets Aesthetics: The throttle valve-equipped hydraulic system allows infinitely adjustable turning speed to match different process rhythms. All exposed hoses and cables are neatly routed and concealed, ensuring reliability and a clean appearance suitable for modern workshops.
Detail-Oriented Delivery: Strict adherence to all client specifications—from color standard (RAL6017) and rust-proofing to cable length and plug type—demonstrates our commitment as a true “production solution partner” beyond just an equipment vendor.