Turkish Crane Maker Switches to Chinese BLDC Geared Motors — A Real B2B Case

The Inquiry

A lifting equipment manufacturer in Turkey — producing small to medium overhead cranes and hoists — reached out with a specific request: 7GU 1:100K BLDC geared motor.

That's a 70mm frame gearbox with 100:1 reduction ratio and keyway output shaft, paired with a brushless DC motor. Not a generic RFQ — they knew exactly what they wanted.

Why BLDC Over Induction Motors?

The Turkish crane industry has traditionally relied on AC induction motors with separate gearboxes. The shift to integrated BLDC geared motors is accelerating for three reasons:

For a crane hoist running 8–12 hours a day, the energy savings alone recover the cost difference within 12–18 months.

Decoding 7GU 1:100K

For buyers new to Chinese gearbox designations:

• 7GU: GH/GV series frame, 70mm center distance. Equivalent to NMRV 075 in European standards.
• 1:100K: 100:1 speed reduction, keyway output. For a motor at 3000 RPM input, output is 30 RPM — ideal for crane lifting speeds.
• BLDC: Brushless DC, typically 48V or 72V, with Hall sensor feedback for precise low-speed torque control.

Spec Checklist for Geared Motor Inquiries

1. Power: 200W to 1500W depending on lifting load
2. Voltage: 48V or 72V DC (battery-powered cranes growing in Turkey)
3. Output speed: Typically 20–40 RPM after reduction
4. Duty cycle: S3-40% or S3-60% for intermittent lifting
5. Protection: IP54 minimum for industrial environments
6. Mounting: Foot-mounted or flange-mounted

Missing any of these means three rounds of back-and-forth emails.

Why Chinese BLDC Motors Win in Turkey

Turkey has a strong domestic manufacturing base, but Chinese BLDC geared motors offer:

• Price: 30–40% cheaper than European equivalents
• Lead time: 15–25 days vs 6–8 weeks from European suppliers
• Customization: Shaft dimensions, mounting flanges, cable lengths — at no extra cost
• Logistics: Ningbo to Istanbul: 25–30 days by sea, well-established route

What This Means for Buyers

An inquiry with a specific gearbox frame + specific ratio + specific motor type signals a buyer who:

• Has an existing product line they're upgrading
• Has tested samples or competitors' products
• Is ready to commit to a shipment — not just browsing

For suppliers: confirm spec compatibility immediately, quote within 24 hours, offer sample motor testing.

At Shenghe, we stock the full 7GU series — 15W to 3000W — and ship samples within 5 business days.