Product Description
Steel Stripe Type Spiral Duct Machine
1. Superior Airflow Efficiency: Smooth inner surface reduces friction loss, enhancing ventilation performance by 30% vs. rectangular ducts.
2. Lightweight & Durable: Galvanized steel or aluminum construction (0.5-2.0mm thickness) ensures corrosion resistance and 20+ years lifespan.
3. Easy Installation: Modular design with snap-lock joints cuts labor costs by 50% and speeds up assembly.
4. Cost-Effective: Lower material waste (≤5%) and energy consumption (15% savings on HVAC systems).
5. Customizable: Available in diameters 100-2000mm, with fireproof/insulated options (ASTM E84 Class A certified).
6. Quiet Operation: Helical seams minimize vibration noise (<45 dB).
Applications: Factories, hospitals, ships, and commercial HVAC systems
Detailed Photos
Product Parameters
Max working pressure |
Dimensions
(mm) |
Applicable rivet specifications |
Weight
(kg) |
Power
(KW) |
Working thrust
(KN) |
STJG-30/50 |
510*320*695 |
P4*10mm
P5*10mm |
68
(excluding hydraulic oil) |
1.1 |
65 |
Company Profile



FAQ
1.Q: Who are we?
A:We are HARMO,a manufacturer and exporter specialize in the sheet metal processing equipment.
2.Q:How to choose a press brake machine?
A: Please tell us the following information in detail:-Material of plate;-Max thickness;Max plate width;
3.Q:Can you supply the relevant documentation?
A: Yes, we can provide most documentation including Certificates of Analysis/Conformance; Insurance; Origin,and other export documents where required.
4.Q:What is the average lead time?
A: The lead time is about 7 days.For mass production, the lead time is 20-30 days after receiving the deposit payment.
5.Q: How can i pay?
A:You can pay by T/T,Western Union, Money Gram, Paypal;30% deposit; pay off the 70% balance before shipment.
6.Q:How about your after-sale service?
A:In order to serve our customers well,the company isspecially managed with ERP software.lt system atically assigns responsibilities and manages the process from pre-sales,sales and after-sales aspects such as consultation,quotation,order placement,export,remote or door-to-door commissioning and installation.