Suspensi

Suspensi is the Indonesian term for suspension and may refer to several related concepts in science and engineering. In general use, a suspension is a heterogeneous system in which solid particles are dispersed in a liquid but do not dissolve. The particles are typically larger than those in a colloid, and, without stabilizers, will settle over time under gravity, forming a sediment.

In chemistry and pharmacy, suspensions describe formulations where insoluble solids are dispersed in a liquid medicine or other liquid medium. Stability depends on particle size, viscosity, temperature, and the presence of stabilizers or surfactants. Suspensions require shaking or agitation before use to redistribute settled material. They are common in pharmaceuticals for liquid drugs, in paints and coatings, and in some food products where pulp or particulates are dispersed.

In automotive engineering, suspensi refers to the vehicle suspension system, a set of springs, dampers, and linkages that connects the chassis to the wheels. Its purpose is to absorb road irregularities, keep tires in contact with the road, and control body motion. Common configurations include independent suspension, where each wheel moves separately, and dependent or solid-axle designs. Typical components are coil or leaf springs, shock absorbers or dampers, struts, and anti-roll bars. The design balances ride comfort, handling, and load capacity, with trade-offs between stiffness and travel.

The term is used across technical fields to denote systems that suspend particles or masses, or to describe the mechanical assemblies that dampen and isolate motion.