We've got your RFQ for direct on-line starting motors, and yes, we cover 110V all the way to 380V—pretty much any standard industrial drive need in that range. Most buyers in your segment go with 0.55kW or 1.1kW for light-duty appliction, but teh 0.1kw-7.5kw spec covers everything form small pumps to conveyors basically. Power frames vary on voltage though, so 380V 3-phase units tend to ship faster (about 10-14 days lead time) while 110V single-phase units we usually have stock, but confirm lead time since it's roughly 15-18 days or so depending on order volume.
What a lot of people miss is that the speed difference between 50Hz and 60Hz is actually something you need to account for if you're switching frequency—the motor's actual output speed under rated torque drops about 2-20% from sync speed, which is normal, but it's tighter toleranced than most cheap units out there at 2-4 pole. 5.5kW is probably the sweet spot for industrial blowers and mixers, though I wouldn't recommend open enclosure because this one has closed type casing protection, so it handles dusty environments better—but that also traps heat, so derate slightly if you're pushing full load continuously.

3, we supply with CE, CCC, ISO9001 certs, COA included if you want it. Pricing is per unit but we do tier discounts at 50, 100, and 500 pieces (250 USD point or so for the 1.1kW 3-phase 380V model at the 100-unit MOQ). 4 pole motors are usually cheaper to run in terms energy, but 2 pole gives you higher rpm if your application needs that variable speed response, and we support both frequencies—just let us know which Hz you're feeding it, and we match the rotor bar design accordingly.

One thing you wouldn't think to ask: the terminal box has enough space for cable glands up to PG21 on the larger units, which is unusual for this power class. Also, if you're thinking about using these for heavy duty continuous duty like a shot blasting machine, these are strictly for standerd industrial driving, not for repeated shock loads or reversing cycles—your torque profile matters more at high starting frequency.

Anyway, bulk pricing for 0.75kW 3-phase 380V at the 200-unit mark is about 38% below unit price, but lead time stretches to 45 days if our company have to order the custom voltage taps for the 1-phase 110V orders—(most of our stock is 220V/380V, 3-phase is way easier to keep in warehouse).
So to get a quote, I need your target voltage, frequency, power range, and whether you need COA or just standard QC report. 2-4 poles are fine for most single-speed loads, but if you need variable speed via VFD, test with your drive first because the direct-on-line start design has LRA slightly higher than dedicated inverter-duty motors, but it's better for aggressive torque off the line.