Why does the Laboratory reagent bottle anti-breakage box use three contact points instead of a full ring?

Answer: Three points let a position shift one way under shock; a full ring leaves foam no rebound and seat acceleration tends to pass 4 g. All 12 positions carry 3 points clear of the thin webs.

Can the 30 mm pad and 45 kg/m³ density change separately?

Answer: They belong together. More height at fixed density grows sideways swing; below 30 mm acceleration nears 4 g. The sheet writes 30 mm and 45 kg/m³ as one pair, so either change reruns the 5–200 Hz sweep.

How is the 1.5 mm displacement measured?

Answer: Before and after a 1.0 m six-face drop, gauged between seat and base datums as a relative shift, both with one template. Over 1.5 mm, check contacts, then pad, then the 3.8 mm wall.

What is retested after 3000 cycles?

Answer: Force at all 12 positions, with post-drop displacement still ≤1.5 mm and sweep acceleration still ≤4 g. The IP65 seal is checked alongside, since a shifted gasket removes the datum.

Laboratory reagent bottle anti-breakage box

Quick answer: A Laboratory reagent bottle anti-breakage box holds displacement within 1.5 mm after a 1.0 m drop and seat acceleration below 4 g across 5–200 Hz.

Three-point clamping layout of the Laboratory reagent bottle anti-breakage box
Bottle-base suspension height and foam density
Transmitted acceleration across the sweep band
Bottle-position displacement measurement under drop impact
Clamping-force decay after cycle life
FAQ

1. Three-point clamping layout of the Laboratory reagent bottle anti-breakage box

The Laboratory reagent bottle anti-breakage box places 12 positions in two rows, each held by 3 contact points at shoulder and mid-body height, with a gap under the base. Outer size 520×400×270 mm and inner cavity 455×335×205 mm fix the usable area before the slot pitch is set.

A 3.8 mm wall shares stiffness between frame and lid. The 5.2 kg empty and 10 kg loaded figures set how far the base may flex, with most mass on the frame. JUNZHIJIA fixes the pitch before placing latches and hinges.

Contact points avoid the thin webs between positions. Rib width left after cutting governs grip; too narrow fails before the foam under a drop, too wide steals the neighbour's clearance. Each contact is kept small so foam can still rebound. The lid foam adds only light pressure and does not locate the bottle, which is left to the three base points. Opening the lid therefore leaves the datum unchanged. Ke Xin New Materials (Guangdong) Co., Ltd. numbers all 12 positions during sampling so a reading traces back to one slot.

Bottle position spec	Value	Acceptance basis
Position count	12	Two rows, numbered one by one
Contact points	3 per position	Shoulder and mid-body heights
Wall	3.8 mm	Frame and lid share stiffness
Outer size	520×400×270 mm	Sets usable area

2. Bottle-base suspension height and foam density

The Laboratory reagent bottle anti-breakage box lifts the bottle base off the hard floor with a 30 mm pad. EVA density of 45 kg/m³ keeps rebound when empty and avoids bottoming out when loaded. A gap around the pad trims the shock peak before it reaches the seat.

Laboratory reagent bottle anti-breakage box open top view, egg-crate lid foam, seven parallel long slots and a square cable cavity on white

Height and density are read together. Raising height at fixed density lowers seat acceleration but grows sideways swing; below 30 mm the sweep tends to pass 4 g. Foam hardness drifts over −10 °C to 50 °C, so the sheet fixes the pair instead of one thickness.

The 4.8 kg between empty 5.2 kg and loaded 10 kg spreads across 12 positions. Whether the Laboratory reagent bottle anti-breakage box uses one pad or blocks depends on whether the ribs still join; a full pad rebounds evenly, blocks swap easily. Both are retested after 3000 cycles.

3. Transmitted acceleration across the sweep band

A 5 Hz to 200 Hz sweep covers handling excitation. The line is not that the shell avoids resonance but that seat acceleration stays ≤4 g, gauged at the seat-foam face. How the Laboratory reagent bottle anti-breakage box behaves depends on pad stiffness matching the three-point preload.

At low frequency the position moves with the case and transmissibility sits near 1; as frequency climbs the foam isolates and the value rises then falls. A spike means a contact was preloaded too lightly. The 5–200 Hz band is split into segments, each compared with the 4 g limit rather than one full-band maximum.

Clamping stage	Parameter	Verification
Shoulder contact	3 per position	Grip checked one by one
Pad suspension	30 mm	Height before and after sweep
EVA density	45 kg/m³	Weighed against a sample
Sweep band	5–200 Hz	Peak per segment

The limit reads 4 g, not a looser band. Move the gauge and the reading moves.

4. Bottle-position displacement measurement under drop impact

A 1.0 m drop runs over six faces, the corner landing concentrating shock. The line is position displacement ≤1.5 mm, gauged between seat and base datums as a relative shift. For the Laboratory reagent bottle anti-breakage box this is the direct evidence that three-point clamping holds.

Laboratory reagent bottle anti-breakage box half submerged in shallow stream water, open lid, black gasket, twin latches and divided liner visible

Displacement is read before and after the drop with one template. Over 1.5 mm, check contacts first, then the pad, then the 3.8 mm wall. The case mouth is marked IP65, and the gasket is inspected after the drop because a shifted seal removes the datum for later tests.

Drop and sweep cannot replace each other. The sweep reads acceleration under continuous 5–200 Hz excitation; the drop reads whether a position returns after one impact. Setting 1.5 mm beside 4 g shows whether 30 mm pad with 45 kg/m³ foam lands in a usable window.

Transmitted value	Test condition	Limit
Position displacement	1.0 m six-face drop	≤1.5 mm
Transmitted acceleration	5–200 Hz sweep	≤4 g
Clamping-force decay	3000 cycles	Displacement still ≤1.5 mm
Mouth seal	IP65 marking	No shift after drop

5. Clamping-force decay after cycle life

Clamping force is remeasured after 3000 cycles to see if repeated compression killed the rebound. Each cycle presses and releases the liner; if decay still holds displacement within 1.5 mm, the Laboratory reagent bottle anti-breakage box is stable. Hardness already drifts from −10 °C to 50 °C, so the life test folds fatigue with temperature drift.

The reading lands on one position, logged for all 12 rather than averaged. If one drops first, its rib is usually too narrow or a contact was under-preloaded. JUNZHIJIA files each position and compares the two sets before and after 3000 cycles; a gap past the line sends the template back.

Life, drop and sweep are ordered because each changes the next one's start. Run 3000 cycles, then the 1.0 m drop, then the 5–200 Hz sweep, and 4 g and 1.5 mm describe the delivered state. Reversed, numbers look better but no longer match a used case.

Conclusion

The Laboratory reagent bottle anti-breakage box comes down to two lines: displacement ≤1.5 mm after a 1.0 m drop and seat acceleration ≤4 g over 5–200 Hz. Twelve positions, 3 contacts each, a 30 mm pad and 45 kg/m³ foam hold those lines; the 3.8 mm wall and IP65 mouth close the boundary. Ordering on retest values after 3000 cycles beats one factory reading. JUNZHIJIA and Ke Xin New Materials (Guangdong) Co., Ltd. file the spec position by position so readings trace to a slot.