Sandvik HL700/HL710/HL800 Rock Drill Accumulator Diaphragm (Cup Seal)

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Productum Overview

This heavy-duty accumulator diaphragma (sigillum Calicis ) is engineered for Sandvik HL700, HL710, HL800 series hydraulic rock drills. It acts as the core isolating component inside the accumulator, separating high-pressure nitrogen and hydraulic oil. Manufactured from imported reinforced neoprene and high-strength rubber compound, it delivers outstanding fatigue resistance, oil resistance and pressure-bearing performance. It perfectly replaces original Sandvik OEM diaphragm, resolves common failures such as nitrogen leakage, insufficient percussion power and unstable drilling output, and extends rock drill service life under continuous high-frequency heavy-duty mining operation 。

Specificatio productorum

Elementum	Parametri Explanati
Nomen Producti	Sandvik HL700/HL710/HL800 Rock Drill Accumulator Diaphragm (Cup Seal)
Modello applicabili	HL700, HL710, HL800 / HL800T Hydraulic Rock Drill
Series Compatible	Sandvik HL Series Top-hammer Rock Drill
Praecipua materia	Imported Reinforced Neoprene Rubber Compound
Maxima pressio operativa	25MPa
Temperatura operativa	−25°C ~ 110°C
Contenta Kit	Accumulator diaphragm cup seal (single unit)
Numerus OEM ad comparationem transversam	152‑357‑98 / 15235798
Ponderis netum	Circa 0,85 kg
Systema applicabile	Rock drill accumulator nitrogen‑hydraulic isolation system
Cautionis Tempus	12 menses

Claves Venditionis Puncta

1. Exacta substitutio OEM 100 %

Fully dimensionally compatible with original Sandvik HL700 / HL710 / HL800 rock drill accumulator housing, matches OEM part number 15235798. No modification required for direct field installation.

2. Premium Reinforced Rubber Raw Material

Adopts imported high-strength neoprene formula with special vulcanization craft. Excellent anti-fatigue performance for millions-cycle high-frequency deformation, resistant to hydraulic-oil swelling, aging and cracking, stable working within −25°C ~ 110°C harsh mining environment.

3. Reliable Gas-oil Isolation & Stable Percussion Performance

Strictly pressure-cycling tested under 25 MPa working pressure. Effectively blocks nitrogen leakage and hydraulic-oil cross-mixing, maintains constant accumulator pre-charge pressure, guarantees steady impact energy and consistent drilling efficiency, avoids rock drill weak-hit downtime failure 。

4. Optimized Structural Fatigue Resistance

Precision moulded integrated cup-shaped diaphragm structure. Uniform stress distribution during repeated stretching-rebound movement, greatly reduces risk of tearing and early failure under continuous high-frequency percussion working condition.

5. Rigida Fabricae Qualitatis Custodia

Omnis diafragma subicitur examini hermeticitatis aeris, examini faticae cycli pressionis et inspectioni aetatis antequam ad munus mittatur. Conformis est normis dimensionibusque fabricantis originalis et normis performance, quae certificant efficaciam longaevam in operationibus subterraneis et superficialibus in mineris.

6. Orbis applicationis

Speciatim coniunctum est cum machinis perforandi roccae hydraulicae seriei Sandvik HL700/HL710/HL800 in variis machinis gravioribus pro mineria et foraminibus:
• Machinis perforandi subterraneis pro foraminibus longis
• Machinis perforandi superficialibus (jumbis)
• Driftibus productionis in metalliferis
• Machinis pro excavatione foraminum et fixando ancoris
• Projectis perforandi pro explosionibus in roccis duris
• Machinas mobiles gravioris usus ad extractionem metallicorum