Stator Double Lacing Machine Factory & Suppliers serving Portugal

Simultaneous Dual-Needle Mechanics

Unlike single-side lacing machinery that requires operators to reverse and relocate the stator—inducing micro-abrasions in magnet wire enameling and doubling handling cycle times—our Automatic Stator Double Lacing Machine binds both the drive end (DE) and non-drive end (NDE) simultaneously. Dual synchronized servo drives govern the needle stroking, hook tensioning, and rotational indexing tables.

Through rigid programmable stitching profiles—encompassing continuous slot-by-slot lacing, boundary skip-slot configurations, and custom tie-off terminations—mechanical strain is distributed across the core crown. This mechanical containment prevents end-turn splay during insertion into tight die-cast motor housings.

Mitigating VFD-Induced Inrush Stresses

Modern industrial equipment manufactured in northern and central Portugal increasingly runs on inverter duty power supplies. Variable speed operations generate sharp switching transients ($dv/dt$ spikes) that manifest high electromagnetic repulsive pulses between coil heads. If coils lack structural lacing rigidity:

• Individual conductors vibrate dynamically inside the phase bundles.
• Enamel film suffers friction erosion, creating localized turn-to-turn dielectric failure.
• Loose windings shift radially, contacting the rotor perimeter or housing grounding shields.

Our machines utilize programmable electronic wire tension governors that maintain steady tension (15 to 45 N adjusted per thread tensile threshold). This guarantees that polyester, meta-aramid, or fiberglass lacing tapes form a solid composite end-turn block after secondary varnish dipping.

Needle Drive Rigidity

Machined from tool-steel castings and vacuum heat-treated, our lacing needles resist mechanical deflection even when driving through dense end-turns, preventing needle breakages and production stalls.

Rotational Indexing Precision

Direct servo motor coupling through zero-backlash planetary reducers guarantees that slot division angles match customer laminations down to ±0.05° precision across 8 to 72 slot geometries.

Operator Safety Ergonomics

Equipped with dual optical safety light curtains, emergency safety monitoring relays, and CE-compliant physical guards to provide safe working conditions for plant personnel.