Access stairs WTJ3600TKT

boardingmobilefor passengers

Overview
The WTJ3600TKT is a hand-pushing passenger stair designed with a nominal ground height of 3600 mm and an adjustable working range of 2500–3600 mm. The unit is manually propelled and does not include motorized passenger steps.

Applications / Compatible aircraft

• A318, A319, A320, A321
• B707, B727, B737
• DC-8 series (DC-8/40/50F, DC8-61/61F, DC8-62/62F, DC8-63/63F)
• IL-18

Standards

• MHT 6029-2014 (Passenger step)
• CCAR-331SB-R1 (Civil Aviation Administration of China)
• CCAR-140 (Civil Aviation Administration of China)

Main technical parameters

• Overall size (L×W×H) without canopy: 8285 × 2220 × 3520 mm
• Platform size: 2000 × 1400 mm
• Workable lift height: 2500–3600 mm (designed 3600 mm)
• Number of ladder steps: 18
• Platform capacity: 6 persons (≥450 kg); max loading capacity: 33 persons (≥2500 kg)
• Curb weight (without canopy): 1700 kg
• Wheelbase: 4030 mm; front/rear tire spacing: 900 / 1550 mm
• Tire specification: 4.00-8
• Manual pushing force: ≤300 N
• Max driving speed (transit): 20 km/h; max driving speed (operation): 3 km/h
• Min ground clearance: 160 mm; turning diameter for channel: 17000 mm
• Approach / departure / inclination angles: 33° / 5° / 23°–36°

Main structure
The assembly comprises sliding doors, back plate, ladder body, lifting mechanism (displacement-type rhomboid), platform assembly and tail ladder assembly. Sliding doors use stainless steel welded frame and aluminum composite panels with rubber anti-collision tubes; back plate features stainless welding and aluminum composite panels with LED provisions.

Operation and handling

• Height adjustment: displacement-type rhomboid mechanism for fine tolerance between stair and hatch.
• Manual propulsion: designed for hand pushing with required force ≤300 N; no onboard motor for passenger steps.
• Use and maintenance: follow applicable standards (MHT 6029-2014, CCAR) and vendor maintenance procedures for lifting mechanism and wheel assemblies.