TLDFA2830 Floating Seal Replacement – Type DF Mechanical Face Seal (283×305×42mm)

Product Specifications

1. Product Specifications

• High Load Capacity – Ability to work effectively under high pressure and heavy load conditions.

• Low Maintenance – Rugged and reliable design reduces maintenance frequency and total operating cost.

2. Applications & Compatible Equipment

RVTON Mechanical Face Seal is widely used in rotating bodies exposed to silt, sand, mud, and other contaminants. Common applications include:

3. What’s Included

• 2 x High-alloy cast iron / bearing steel metal seal rings

• 2 x NBR rubber O-rings 

Q1: What is Trelleborg TLDFA2830?

A: Trelleborg TLDFA2830 is a Type DF mechanical face seal – also known as a floating seal, duo cone seal, or heavy-duty seal. It belongs to Trelleborg‘s Type DF mechanical face seal series, featuring two metallic seal rings and elastomeric torque rings for demanding operational environments. The complete part number includes the suffix TLDFA2830-2CP00, where “2CP00” indicates the NBR elastomer material code. This model is also commonly cross-referenced to GNL CW.5900 floating seal.

Q2: What are the dimensions of Trelleborg TLDFA2830?

A: According to official specifications, the Trelleborg TLDFA2830 mechanical face seal has an inner diameter of 283 mm, outer diameter of 305 mm, and thickness of 42 mm. Please confirm fitment with your equipment‘s original seal or parts diagram before ordering.

Q3: What does the “2CP00” suffix in TLDFA2830-2CP00 mean?

A: In Trelleborg’s part numbering system, the suffix code indicates material and design specifications. For TLDFA2830-2CP00:
-“2” indicates Type DF series (mechanical face seal)
-“C” indicates the metal seal ring material is bearing steel
-“P” indicates standard profile design
-“00” indicates standard version
-“2CP00” also denotes NBR (Nitrile Butadiene Rubber) elastomer with specific hardness properties

Alternative suffixes include 2CSY0 for other elastomer materials such as FKM or HNBR.

Q4: What is the difference between TLDFA2830 and GNL CW.5900?

A: TLDFA2830 is Trelleborg's original part number for the Type DF mechanical face seal. GNL CW.5900 is an aftermarket cross-reference number used by Italian manufacturer GNL (GNL) for the same sealing solution. Both refer to the same seal assembly with identical dimensions (283×305×42mm) and Type DF design. Our TLDFA2830 replacement seal is fully interchangeable with both Trelleborg OEM and GNL CW.5900 aftermarket parts.

Q5: What equipment uses the TLDFA2830 floating seal?

A: The TLDFA2830 Type DF mechanical face seal is widely used in:

• Tracked vehicles (bulldozers, excavators, tracked carriers)

• Construction machinery (final drives, track rollers, carrier rollers, front idlers)

• Mining equipment (continuous miners, longwall shearers, roadheaders)

• Agricultural machinery (combine harvesters final drives, tractor axles)

• Tunnel boring machines (TBMs)

• Heavy-duty industrial gearboxes and axle assemblies

Compatible brands include Caterpillar, Komatsu, Hitachi, John Deere, Volvo, and Liebherr. We recommend verifying fitment for your specific equipment model before ordering.

Q6: What materials are available for the TLDFA2830 seal?

A: The TLDFA2830 floating seal offers the following material options:

• Metal rings: Bearing steel (100Cr6 / GCr15) – hardness 58–62 HRC standard or 65–72 HRC premium grade

• Elastomer materials: NBR (standard, –25°C to +110°C), FKM (–30°C to +250°C), HNBR, or silicone

For high-temperature or chemically aggressive environments, please select FKM or HNBR options.

Q7: How long does the TLDFA2830 floating seal last?

A: Service life depends on the material grade selected:

• Standard bearing steel grade (58–62 HRC): 3,000–5,000 hours

• Premium cast alloy grade (65–72 HRC): 5,000–8,000 hours

Both grades are backed by an 18-month factory warranty from the date of shipment.

Q8: What is the operating temperature range for TLDFA2830?

A: The operating temperature range varies by elastomer material:

• NBR (standard, code 2CP00): –25°C to +110°C

• FKM (fluorocarbon): –30°C to +250°C

• Silicone: –55°C to +230°C

• HNBR: –30°C to +160°C

Q9: How should I install the TLDFA2830 Type DF mechanical face seal?

A: Proper installation is critical for Type DF seal performance:

1. Thoroughly clean the housing and remove all debris before assembly.

2. Ensure all groove edges are smooth with no burrs.

3. Use specialized installation tools to avoid damaging the precision-lapped metal seal faces.

4. The two metal sealing rings must be installed face-to-face.

5. The elastomeric torque rings (O-rings) must be properly seated without twisting.

6. Important: The seal rings are hard and brittle – avoid heavy impacts during installation.

7. Do not use oil or grease to lubricate the O-rings during installation (use anhydrous ethanol if needed).

For detailed installation guidance specific to your equipment model, contact our technical support team.

Q10: What is the MOQ for the TLDFA2830 floating seal?

A: Our MOQ is just 1 set. We maintain inventory of this Trelleborg TLDFA2830 size, with a monthly production capacity exceeding 50,000 sets and a typical lead time of 1–2 weeks.

Q11: Can I get a sample before placing a bulk order?

A: Yes, sample orders are welcome with MOQ as low as 1 set. Material certification (including material composition and hardness test reports) and dimension reports are available upon request to verify product quality before bulk order placement. Contact our sales team with your requirements.