A: Yes — that is precisely what our machines are engineered to do. Each Derui tester replicates specific real-world actions through standardized loading cycles defined by international standards:

• Sofa sitting: The DR-J501 three-seat sofa durability tester applies 750 N to the seat surface and 400 N to the backrest through anatomically shaped loading pads, cycling at 2–30 cycles per minute to replicate years of daily use in days of accelerated testing.
• Chair swiveling: The DR-J601 office chair swivel tester rotates the seat through a controlled angular range under load for up to 120,000 cycles — exactly matching BIFMA X5.1 Section 8 requirements.
• Mattress rolling: The DR-J503 fully automatic mattress tester uses a 1400 N loaded roller (with 0.5 ± 0.05 kg·m² rotational inertia per EN 1957) that traverses the mattress surface, simulating the repeated rolling of a sleeper over years of use. It simultaneously measures edge support compression and surface hardness.

The key distinction is that we simulate usage in an accelerated but standards-compliant manner. A 120,000-cycle swivel test compresses roughly 5–10 years of typical office use into approximately 80 hours of machine time. The loading pads, roller geometries, and cycle profiles all follow the dimensional and kinematic specifications in BIFMA, EN, and ASTM standards to ensure the simulation correlates with real-world failure modes — foam collapse, frame fatigue, mechanism wear.