What to check / ask when choosing
Capacity: m³/h (how much concrete you need to spray per hour).
Aggregate size: Some machines can handle coarser aggregates.
Drive type: Electric motor vs diesel engine (diesel good if no stable power supply).
Max spraying distance / hose length: Especially important for large tunnels/slopes.
After-sales & spare parts in Japan: Check whether the supplier delivers spare parts locally, how fast.
Warranty coverage detail: Does "1 year" cover all parts (motor, rotor, wear parts)? What about electronics? Shipping costs for warranty service?
Certifications and safety: CE, ISO etc., especially if importing.
Customs & import costs: Japan may impose import duties, shipping, compliance checks.
