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Rubber Shock Absorber
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JZP-7.5 Hygienic Smooth Design Rubber Shock Absorber with Easy Washdown Progressive Cushioning

JZP-7.5 Hygienic Smooth Design Rubber Shock Absorber with Easy Washdown Progressive Cushioning

Brand Name: Hoan
Model Number: JZP-7.5
MOQ: 10 Pieces
Payment Terms: L/C,D/A,D/P,T/T,Western Union
Detail Information
Place of Origin:
Shaanxi, China
Certification:
ISO 9001:2015
Material:
Natural Rubber + Zinc-Plated Carbon Steel Core
Model:
JZP-7.5
Nominal Load:
7.5 Kg Per Mount
Deformation Under Load:
≤0.3mm
Resonant Frequency:
35±3Hz
Frequency Range:
10Hz To 100Hz
Operating Temperature:
-45℃ To +65℃
Shock Endurance:
100g/6ms
Surface Design:
Hygienic Smooth, Easy Washdown
Damping Type:
Progressive Cushioning (Non-Linear)
Weather Resistance:
Excellent
Mounting Orientation:
Vertical
Highlight:

Hygienic Smooth Washdown Design

,

Progressive Cushioning Rubber Damper

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JZP-7.5 Heavy Duty Isolator

Product Description

JZP-7.5 Hygienic Smooth Design Rubber Shock Absorber with Progressive Cushioning

Purpose-built for sanitary environments where cleanability, corrosion resistance, and adaptive vibration damping are essential operational requirements.

7.5 kg

Nominal Load

-45℃ to +65℃

Temperature Range

10Hz to 100Hz

Frequency Coverage

35±3Hz

Resonant Frequency

Hygienic Smooth Design: Engineered for Cleanability

Equipment in food and beverage processing, pharmaceutical manufacturing, and cleanroom environments faces stringent sanitation requirements. Standard rubber mounts with surface texture, parting lines, and crevices become harborage points for bacteria, product residue, and cleaning chemical entrapment.

The JZP-7.5 addresses these challenges through a hygienic smooth surface design achieved via precision mold finishing and optimized rubber compound flow characteristics. The result is a mount with:

Non-Porous Surface Finish

Mirror-finish mold cavities produce a rubber surface free of micro-pores where contaminants could accumulate. Passes 3-A sanitary standard visual inspection criteria for food contact zone adjacent components.

Minimal Parting Line Profile

Engineered mold closure tolerance keeps the parting line flash below 0.15mm, eliminating the ridge that typically collects debris on standard mounts.

Radiused Transitions

All geometric transitions feature generous internal radii—no sharp internal corners where cleaning tools cannot reach or where residue accumulates.

Chemical Washdown Compatible

Rubber formulation resists common sanitation chemicals including peracetic acid, quaternary ammonium compounds, and sodium hypochlorite solutions at standard CIP concentrations.

Progressive Cushioning: Adaptive Vibration Control

Unlike linear-rate isolators that provide uniform stiffness regardless of displacement, the JZP-7.5 employs progressive cushioning technology—a non-linear stiffness characteristic where damping resistance increases as deflection grows.

Small Deflection Zone

Soft initial compliance absorbs low-amplitude, high-frequency vibrations typical of normal equipment operation—delivering effective isolation for motor and bearing-induced oscillations.

Mid Deflection Zone

Gradually increasing resistance provides proportional damping as load grows, maintaining isolation effectiveness across variable operating conditions without bottoming out.

Large Deflection Zone

Firm terminal stiffness prevents metal-to-metal contact under shock loads up to 100g/6ms, protecting equipment from impact damage while avoiding mount destruction.

This progressive characteristic is achieved through the rubber element's geometry—the cross-section profile is computationally optimized so that increasing compression engages progressively more material volume, naturally producing the non-linear rate without additional mechanical components.

Technical Data

Operational Parameters
Model JZP-7.5
Rated Load per Mount 7.5 kg
Static Deflection at Rated Load ≤0.3mm
Natural Frequency (Vertical) 35±3Hz
Effective Isolation Bandwidth 10Hz to 100Hz
Service Temperature Range -45℃ to +65℃
Shock Pulse Rating 100g/6ms
Impulse Withstand 40g/11ms
Environmental Durability Excellent
Recommended Mounting Orientation Vertical
Mounting Dimensions
Body Diameter (D) Overall Height (H) Stud Height (h) Length (A) Width (B) Mount Hole (d1) Thread (MG) Edge Radius (R)
58mm 29mm 17mm 50mm 60mm ∅5.5mm M6 5mm

Material Composition & Compliance

The rubber element uses a natural rubber formulation with high internal damping (tan δ ≥ 0.15). The compound is free of phthalates, PAHs, and BPA. The steel core is carbon steel with zinc electroplating (8μm minimum thickness) followed by a trivalent chromium passivation layer per RoHS directive.

RoHS Compliant REACH Compliant Phthalate-Free PAH-Free FDA CFR 21 Indirect Contact

Industry Applications

Food & Beverage Processing

Mixers, fillers, conveyors, and packaging machinery operating under daily washdown protocols. Smooth surfaces prevent product buildup and withstand sanitation chemical exposure.

Pharmaceutical Manufacturing

Tablet presses, capsule fillers, centrifuges, and cleanroom HVAC equipment where surface cleanability and particle shedding control are critical GMP requirements.

Laboratory & Analysis Instruments

Precision balances, spectrophotometers, and chromatography systems requiring vibration isolation without introducing contamination risks to sensitive measurement environments.

Dairy & Beverage Production

Equipment subject to daily CIP (Clean-in-Place) cycles. Chemical-resistant rubber formulation maintains mechanical properties after repeated exposure to cleaning solutions at elevated temperatures.

Installation Guidelines

For optimal progressive cushioning performance, mounts should be installed so that the static load compresses the rubber element to approximately 50-65% of its available deflection range. This places the operating point in the progressive zone where small vibrations encounter soft damping while overload conditions trigger the protective firm-response region.

Mounts should be arranged symmetrically around the equipment center of gravity. For equipment with uneven weight distribution, load-rated mounts of different capacities within the same JZP series can be specified for individual mounting points to achieve uniform deflection across all isolators.

Frequently Asked Questions

Q: What cleaning agents are compatible with the hygienic smooth surface?

The rubber compound is compatible with peracetic acid (≤2000 ppm), quaternary ammonium sanitizers, sodium hypochlorite (≤200 ppm), hydrogen peroxide vapor, and isopropyl alcohol (70%). Avoid prolonged immersion in concentrated acids or strong organic solvents. A compatibility chart is available upon request.

Q: How does progressive cushioning benefit equipment with variable loading?

Equipment that operates across a range of loads—such as batch processors that fill and empty—experiences different vibration profiles at each stage. Progressive cushioning automatically adapts: soft damping when the vessel is empty, firmer support when full, without requiring manual adjustment or active control systems.

Q: Does the smooth surface design compromise vibration isolation performance?

No. The smooth surface is achieved through mold finish quality and compound formulation, not by altering the rubber volume or geometry that governs dynamic performance. The JZP-7.5 meets identical vibration isolation specifications as the standard JZP series mounts.

Request a washdown compatibility test report, progressive cushioning load-deflection curve, or evaluation samples of the JZP-7.5 for your sanitary application.