AWAH Z2/Z3 Selection Guide

AWAH Z2 and Z3 are electric lifting and lowering devices under the AWAH brand. Both use a drill as their power source, but they differ significantly in their application, safety features, and rope compatibility. This guide provides a detailed comparison to help you choose the right equipment.

I. Structure Diagrams

AWAH Z2

AWAH Z3

II. Model Comparison

Model Parameters	Z2-R	Z3	Description
Safety	★ Low	High	1. Z2 requires an external backup system. 2. Z3 has a built-in collapse self-locking mechanism. ★ Note: Dual protection is recommended.
Rope Pinching Risk	★ Possible	None	Thin or soft ropes may get pinched in Z2's wheel but will not cause a fall. ★ Note: Pinching does not lead to a fall.
Lifting Slippage	None	Possible	Z3's wheel is designed for both lifting and lowering, and improper weight or rope pairing may cause slippage.
Locking Slippage	None	None	Both Z2 and Z3 provide sufficient locking to prevent rope slippage.
Ease of Use	Low	High	1. Z2 cannot be used alone and requires an external backup. 2. Z3 can be used standalone, with an integrated self-locking system.
Energy Efficiency	High	Low	Z3's rope clamping structure reduces energy efficiency.
Locking Mechanism	Ratchet	Ratchet + Swing Block	1. Ratchets wear over time. 2. Z3 features a dual-locking mechanism: if the ratchet fails, the backup locking system is activated.
Unlocking Mechanism	Ratchet Hook	Rope Wheel Opening	1. Z2 experiences impact during unlocking, with only two states: stopped or fully unlocked. 2. Z3 offers linear, smooth unlocking by handle angle adjustment.
Transmission Ratio	8.33:1	8.00:1	1. Z3 is faster in lifting. 2. Z3 requires more powerful drills.
Gear Count	2	4	1. Z2 uses counterclockwise drill rotation for input. 2. Z3 uses clockwise drill rotation for input.
Secondary Suspension Hole	Available	Available	Minimum Breaking Strength (MBS) ≥ 22 kN.
Water and Dust Protection	None	IP66	1. Z3's gearbox has IP66 water and dust protection. ★ Note: Keep the guide rollers of both Z2 and Z3 dry to prevent rust.
Friction Mechanism	Friction Hook	Rope Wheel Clamping	1. Friction hooks provide good heat dissipation but may twist ropes. 2. Rope wheel clamping offers smoother lowering.
Rope Type	Mechanical Static Rope	EN 1891 Semi-static Rope	1. Mechanical ropes have tightly woven cores and are more durable. 2. EN 1891 semi-static ropes are more versatile.
Maintenance Cost	Low	High	1. Z2's rope wheel has a longer lifespan, typically requiring only other parts to be replaced. 2. Z3's rope wheel has a shorter lifespan.
Overall Evaluation	1. Suitable for long-distance cargo lifting. 2. Better for dirty ropes (e.g., grease, ice, silicone).	1. Ideal for frequent switching between lifting and lowering. 2. May slip on dirty ropes.	★ Note: This comparison is specific to Z2 and Z3 and does not apply universally.

III. Product Images

AWAH Z2

AWAH Z3