15235798 / 152 357 98 Diaphragm – Hydraulic Control Component for Sandvik Rock Drills

Product Overview

The 15235798 diaphragm (also listed as 152 357 98) is a precision hydraulic control component engineered for demanding rock drilling environments. Designed for use in percussion and pressure-regulation systems, this diaphragm plays a critical role in maintaining internal balance between hydraulic chambers, ensuring smooth energy transfer and stable drilling performance.

Manufactured for heavy-duty mining and construction applications, this part supports consistent pressure response while protecting surrounding assemblies from vibration and fluid loss.

Supplied by 3GEN Export as an OEM-grade replacement, this diaphragm is available with worldwide delivery in 5 working days, helping reduce downtime across global operations.

Functional Role Inside the Drill System

This diaphragm operates as a flexible pressure separator within hydraulic modules. During each drilling cycle, it absorbs rapid pressure changes and converts them into controlled mechanical movement, allowing the system to function smoothly even under extreme load.

Its main purposes include:

• Stabilizing hydraulic pressure during percussion

• Preventing fluid crossover between internal chambers

• Supporting consistent impact energy

• Reducing vibration transfer

• Protecting valve and piston assemblies from contamination

Without a properly performing diaphragm, drilling efficiency drops quickly and internal wear accelerates.

Construction and Material Design

The component is produced using a reinforced elastomer bonded to a steel backing plate. This hybrid structure provides both elasticity and structural strength, allowing the diaphragm to withstand continuous compression cycles.

Key characteristics:

• High fatigue resistance

• Hydraulic-oil compatible elastomer

• Heat-stable material composition

• Precision-formed sealing edges

• Dimensional accuracy for reliable seating

This design ensures long service life even in aggressive drilling conditions.

Application Areas

This diaphragm is installed in hydraulic control sections of various rock drilling machines, including:

• Underground development jumbos

• Surface crawler drills

• Production drilling rigs

• Tunneling equipment

• Hydraulic percussion modules

It integrates directly with valve blocks and pressure chambers where responsive sealing is essential.

Compatible Machine Platforms

The 15235798 / 152 357 98 diaphragm is used across multiple platforms from Sandvik, including:

• HL700

• HL1500

• HL710

• HL800T

Exact compatibility depends on machine revision. Sharing your model or serial number allows accurate confirmation.

Technical Information (Typical)

• Component type: Hydraulic diaphragm

• Construction: Elastomer bonded steel

• Operating medium: Hydraulic oil / compressed air

• Function: Pressure separation and stabilization

• Estimated weight: approx. 0.35 kg

• Finish: Machined sealing rim

• Operating range: Suitable for heavy industrial drilling environments

Installation Recommendations

For best results:

1. Clean housing surfaces thoroughly

2. Inspect mating areas for scoring

3. Lightly lubricate before fitting

4. Maintain correct orientation

5. Apply even torque during assembly

6. Perform pressure testing after installation

Preventive replacement during scheduled maintenance significantly reduces unexpected failures.

Why Choose 3GEN Export

3GEN Export supplies OEM-quality heavy machinery spare parts to mining and construction operations worldwide.

With this diaphragm, you receive:

• OEM manufacturing standards

• Global shipping in 5 working days

• Export-grade packaging

• Technical verification support

• Multi-brand sourcing capability

We help keep your drilling equipment productive—wherever your site is located.

Signs Replacement Is Needed

Typical indicators include:

• Pressure instability

• Reduced impact force

• Oil seepage near control modules

• Irregular drilling response

• Visible hardening or deformation

Early replacement protects surrounding components and avoids larger system damage.

Performance Benefits

Installing a new diaphragm restores:

• Stable hydraulic behavior

• Consistent percussion energy

• Reduced vibration

• Lower internal wear

• Improved operational efficiency

Small components like this directly influence overall machine reliability.

Global Availability

3GEN Export ships this part worldwide within 5 working days, supporting projects across Europe, the Middle East, Africa, Asia, and the Americas.

Every order is prepared for immediate installation upon arrival.