BOMAG BW Series Compactor Overview
The BOMAG BW series is the most widely used line of single-drum and tandem vibratory compactors in North American road construction. BW stands for Bodenverdichtungswalze (soil compaction roller), and the series spans machines from the compact BW 120 tandem roller to the massive BW 300 padfoot compactor used for deep soil compaction on highway and dam projects.
US construction fleets rely on BOMAG BW compactors for base course preparation, asphalt compaction, and subgrade soil stabilization. The rubber components in these machines — particularly cab mounts, vibration dampers, and rubber buffers — are wear items that require periodic replacement to maintain operator comfort and equipment performance.
This guide covers the complete rubber parts ecosystem for BOMAG BW series compactors, helping US fleet managers identify the correct part numbers, understand replacement intervals, and source components efficiently.
BOMAG Part Numbering System
BOMAG rubber components fall into two primary number series:
- 3115 Series: Rubber isolation and vibration damper components, including anti-vibration mounts, cab suspension elements, and isolation pads. Examples: 3115 1822 00, 3115 2472 00, 3115 1926 02.
- 3128 Series: Cab mounting rubber assemblies, including the primary cab mount kit components. Examples: 3128 0458 15, 3128 0458 18, 3128 0458 24, 3128259405.
The suffix digits in the 3128 0458 series indicate Shore A hardness: 15 = 15 Shore A (soft), 18 = 18 Shore A (medium), 24 = 24 Shore A (firm). Selecting the wrong hardness for your application results in either excessive cab motion (too soft) or insufficient vibration isolation (too firm).
Hardness Selection Quick Reference
| Part Number | Shore A | Application |
|---|---|---|
| 3128 0458 15 | 15 | Light cabs, smooth terrain, max isolation |
| 3128 0458 18 | 18 | Most BW 177–226 compactors — most common |
| 3128 0458 24 | 24 | Heavy cabs, rough terrain, high vibration output |
Cab Mount Components for BOMAG BW Series
BOMAG BW series compactors use rubber cab mounts to isolate the operator cab from machine vibration generated by the drum exciter system. The cab mount system typically consists of 4–6 individual rubber mounts positioned at the corners and midpoints of the cab subframe.
Key BOMAG cab mount part numbers for BW series equipment:
- 3128 0458 15 — Soft (15 Shore A) cab mount rubber element
- 3128 0458 18 — Medium (18 Shore A) cab mount rubber element — most widely used
- 3128 0458 24 — Firm (24 Shore A) cab mount rubber element
- 3115 1822 00 — Cab mount rubber buffer element
- 3115 1822 01 — Cab isolation mount type-1
- 3128 3175 50 — Cab suspension element
- 3128259405 — Complete cab mount assembly
Vibration Damper Components
BOMAG compactors generate significant vibration through the drum exciter system. Anti-vibration mounts are used at multiple locations — drum bearing mounts, engine isolation pads, and frame-to-cab interfaces — to control vibration transmission throughout the machine structure.
- 3115 2472 00 — BOMAG anti-vibration mount
- 3115 1926 02 — BOMAG vibration damper rubber
- 3128047510 — BOMAG rubber isolator
Vibration dampers are safety-critical components. Worn dampers allow excessive vibration transmission, increasing Hand-Arm Vibration (HAV) and Whole-Body Vibration (WBV) exposure for operators. US OSHA HAV exposure limits under 29 CFR 1910 make regular damper inspection and replacement a compliance requirement for US fleet managers.
Rubber Buffer Components
Rubber buffers at travel end stops and swing positions absorb kinetic energy to prevent metal-to-metal impact. Worn buffers allow damaging impact loads that can crack chassis members and frame welds.
- 3115 9150 99 — BOMAG rubber buffer element
- 3128303930 — BOMAG rubber buffer block
- 354082 — BOMAG compactor rubber pad
- 450122 — Suspension rubber buffer
Sourcing BOMAG BW Series Parts for US Fleets
BOMAG dealer parts in the US carry significant price premiums over ISO-certified aftermarket alternatives. US fleet operators have increasingly sourced rubber components internationally, where ISO 9001:2015 certified manufacturers can provide equivalent technical quality at 30–60% cost reduction.
When sourcing BOMAG rubber parts internationally, verify:
- ISO 9001:2015 certification with current certificate
- Material test reports confirming compound specification
- Dimensional inspection records against BOMAG references
- Shore A hardness certification within ±2 Shore A of specification
- Bonded interface pull-off strength testing records
We provide all of the above documentation with every shipment to US customers. Contact our technical team for pricing on specific BW series part numbers or to discuss your fleet's maintenance requirements.