FAQs & answers

Everything you've always wanted to know

General Information

What does Xpress seals GmbH do?

Xpress seals GmbH specialises in seals and sealing systems for hydraulic, pneumatic, rotary and static applications. Fast availability and custom manufacturing are our core strengths. In addition to standard components, custom-made seals up to a diameter of 1,500 mm (59”) are manufactured within the shortest possible time. In addition, xpress seals distributes specialised machinery and equipment, supplied directly to cylinder manufacturers and hydraulic cylinder repair workshops.

Which industries does Xpress seals supply?

Typical industries include:

  • Mechanical and plant engineering
  • Hydraulics / pneumatics
  • Food & pharmaceutical industries
  • Chemical industry
  • Energy sector
  • Oil & gas industry
  • Plastics and metal processing
  • Maritime industry (onshore / offshore)

We are happy to review your specific application.

Does Xpress seals provide consultation?

Yes. We provide comprehensive consultation on the selection, design and material choice of your seals. The basis for this is your operating data (medium, temperature, pressure, speed).

Products & Materials

Which seals does xpress seals offer?

  • Rod seals
  • Piston seals
  • Wipers
  • Guide rings
  • Rotary / shaft seals
  • O-rings
  • X-rings
  • PTFE seals
  • Flat seals
  • Special profiles

Which materials are available?

  • Hydrolysis-resistant polyurethane material variants
  • NBR
  • HNBR
  • FKM / Viton®
  • EPDM
  • FFKM
  • PTFE / filled PTFE compounds
  • Silicone (VMQ)
  • NBR / PVC
  • PEEK and others

What temperature and media resistance is guaranteed?

This depends on the material used, for example:

  • Hydrolysis-resistant polyurethane: –55 °C to +150 °C
  • NBR: –30 °C to +100 °C
  • FKM: up to +200 °C
  • EPDM: suitable for water and steam
  • PTFE: extremely media-resistant

We recommend a compatibility check in all cases.

Are food-grade and FDA-compliant materials available?

On request, we supply materials compliant with:

  • FDA / EU 1935/2004
  • USP Class VI (pharmaceutical applications)
  • NORSOK M-710
  • 3-A Sanitary
  • W270
  • DVGW (KTW)

Custom Manufacturing & Express Service

Does Xpress seals manufacture seals according to drawings or samples?

Yes. We manufacture seals according to individual specifications.
Production is possible based on:

  • Technical drawings
  • CAD data
  • Samples (reverse engineering)

Is an express service available?

Yes. Same-day express manufacturing is possible.
This depends on quantity, material and geometry

What is the minimum order quantity (MOQ)?

1 piece.

Technical Data & Standards

Which standards does xpress seals manufacture to?

Depending on the product:

  • ISO 3601 / DIN 3771 (O-rings)
  • ISO 6194 (radial shaft seals)
  • ISO 7425 (hydraulic profiles)

Tolerances and groove dimensions depend on the specific application.

Which information is required for seal design?

  • Medium
  • Temperature range
  • Pressure
  • Speed
  • Surface / counterface
  • Installation space (groove dimensions)
  • Dynamic or static application
  • Installation situation

Alternatively, simply provide the original manufacturer’s part number – we will cross-reference it.

What are the maximum pressure and speed ratings?

These depend on the profile and material.
Please provide the operating data so we can verify suitability and recommend an appropriate sealing system.

Ordering & Delivery

How can I place an order?

Orders can be placed via e-mail, telephone or WhatsApp.
Please specify:

  • Article / profile
  • Dimensions
  • Material
  • Quantity
  • Delivery address

What delivery times can generally be expected?

We deliver promptly:

  • Stock items: approx. 1–3 working days
  • Express manufacturing: by agreement

Which shipping methods and costs apply?

Standard and express shipping are provided with tracking.
Costs depend on weight, destination and service level.

Is international shipping possible?

Yes. We ship throughout Europe and worldwide.
Export documentation is provided.

Quality & Certifications

How is quality assured?

We provide:

  • Incoming and outgoing goods inspections
  • Material batch traceability
  • Dimensional inspections

Inspection reports can be issued on request.

Which certifications can xpress seals provide?

ISO 9001:2015 certification
Material certificates (e.g. FDA, REACH, RoHS, conflict minerals, TSCA) on request

Is traceability available?

Yes. Batch identification and documentation are available.

Installation, Maintenance & Storage

Do you provide installation recommendations?

Yes. We recommend:

  • Chamfering or breaking sharp edges
  • Clean grooves
  • Compatible assembly lubricants
  • Use of assembly sleeves / protective caps

Avoid twisting and always observe the correct installation direction.

What lubrication should be used?

Use compatible assembly and operating media.
Mineral oils, synthetic oils or water/glycol may be used depending on the material.

How should elastomer seals be stored?

Store in a cool, dry and dark place, avoid ozone and UV exposure, and keep in original packaging.
Guidelines according to ISO 2230 apply.

Returns, Complaints & Warranty

What if something does not fit?

Please contact us with:

  • Order number
  • Photos
  • Operating data

We will review your request promptly and find a solution.

Cancellation / returns

Standard products (stock items):
Returns are possible after prior consultation. Please contact us.

Custom-made products (individual solutions):
As these products are manufactured specifically for you, they are excluded from cancellation.
This does not apply in cases of defective goods.