diff --git a/conversor_relatorio_estruturas.html b/conversor_relatorio_estruturas.html
index c6e9ab5..e55d008 100644
--- a/conversor_relatorio_estruturas.html
+++ b/conversor_relatorio_estruturas.html
@@ -618,11 +618,9 @@
         }
 
         if (currentAssembly) {
-          const isSubComp =
-            itemMark === '-' ||
-            itemMark.includes('-100') ||
-            itemMark.includes('-10') ||
-            (itemMark.match(/-\d+$/) && parseInt(itemMark.match(/-(\d+)$/)[1], 10) >= 1000);
+          const lastNumberMatch = itemMark.match(/(?:^|-)(\d+)$/);
+          const itemNum = lastNumberMatch ? parseInt(lastNumberMatch[1], 10) : (parseInt(itemMark, 10) || 0);
+          const isSubComp = itemMark === '-' || itemNum >= 1000;
 
           if (isSubComp) {
             currentAssembly.isComposed = 'SIM';
diff --git a/public/conversor_relatorio_estruturas.html b/public/conversor_relatorio_estruturas.html
index c6e9ab5..e55d008 100644
--- a/public/conversor_relatorio_estruturas.html
+++ b/public/conversor_relatorio_estruturas.html
@@ -618,11 +618,9 @@
         }
 
         if (currentAssembly) {
-          const isSubComp =
-            itemMark === '-' ||
-            itemMark.includes('-100') ||
-            itemMark.includes('-10') ||
-            (itemMark.match(/-\d+$/) && parseInt(itemMark.match(/-(\d+)$/)[1], 10) >= 1000);
+          const lastNumberMatch = itemMark.match(/(?:^|-)(\d+)$/);
+          const itemNum = lastNumberMatch ? parseInt(lastNumberMatch[1], 10) : (parseInt(itemMark, 10) || 0);
+          const isSubComp = itemMark === '-' || itemNum >= 1000;
 
           if (isSubComp) {
             currentAssembly.isComposed = 'SIM';
diff --git a/src/components/conversores/AdvanceSteelConverter.tsx b/src/components/conversores/AdvanceSteelConverter.tsx
index 08e3eba..47ed144 100644
--- a/src/components/conversores/AdvanceSteelConverter.tsx
+++ b/src/components/conversores/AdvanceSteelConverter.tsx
@@ -518,12 +518,12 @@ const AdvanceSteelConverterContent: React.FC = () => {
       }
 
       if (currentAssembly) {
-        const isSubComp =
-          itemMark === '-' ||
-          isComponente(itemMark) ||
-          itemMark.includes('-100') ||
-          itemMark.includes('-10') ||
-          (itemMark.match(/-\d+$/) && parseInt(itemMark.match(/-(\d+)$/)![1], 10) >= (labels.faixaComponenteMin || 1000));
+        // Extrai o número final da marca do item (ex: de "B134-13-1" -> 1, de "B134-13-1000" -> 1000, de "B133-13-1015" -> 1015, de "1000" -> 1000)
+        const lastNumberMatch = itemMark.match(/(?:^|-)(\d+)$/);
+        const itemNum = lastNumberMatch ? parseInt(lastNumberMatch[1], 10) : (parseInt(itemMark, 10) || 0);
+
+        // Um item é SUBCOMPONENTE apenas se sua numeração de marca for >= faixaComponenteMin (1000) OU se for explicitamente '-'
+        const isSubComp = itemMark === '-' || itemNum >= (labels.faixaComponenteMin || 1000);
 
         if (isSubComp) {
           currentAssembly.isComposed = 'SIM';
diff --git a/src/components/pecas/table/TableHeaderSortable.tsx b/src/components/pecas/table/TableHeaderSortable.tsx
index 78117cb..89bdfd5 100644
--- a/src/components/pecas/table/TableHeaderSortable.tsx
+++ b/src/components/pecas/table/TableHeaderSortable.tsx
@@ -72,8 +72,8 @@ export function TableHeaderSortable({
         <SortButton field="prioridade">Prioridade</SortButton>
       </TableHead>
       
-      <TableHead className="w-16 px-2 text-center">
-        <SortButton field="tem_componentes">Tipo / {labels.componenteLabel}</SortButton>
+      <TableHead className="w-24 px-2 text-center">
+        <SortButton field="tem_componentes">Componentes</SortButton>
       </TableHead>
       
       <TableHead className="w-12 px-2 text-right">
diff --git a/src/components/pecas/table/TableRow.tsx b/src/components/pecas/table/TableRow.tsx
index 51a8861..dd13302 100644
--- a/src/components/pecas/table/TableRow.tsx
+++ b/src/components/pecas/table/TableRow.tsx
@@ -13,7 +13,8 @@ import {
   ChevronDown, 
   Layers, 
   Loader2,
-  ExternalLink
+  ExternalLink,
+  Minus
 } from 'lucide-react';
 import { Peca } from '@/hooks/usePecas';
 import { useComponentesPeca } from '@/hooks/useComponentesPeca';
@@ -110,11 +111,14 @@ export function TableRow({
           <PriorityBadge prioridade={peca.prioridade as any} />
         </TableCell>
         
-        <TableCell className="w-16 px-2 text-center">
-          <div className="flex justify-center">
+        <TableCell className="w-24 px-2 text-center">
+          <div className="flex justify-center items-center">
             {!peca.tem_componentes ? (
-              <div className="flex items-center justify-center w-5 h-5 bg-green-500 rounded-full shadow-sm" title="Monopeça (sem componentes)">
-                <Check className="h-3 w-3 text-white font-bold" />
+              <div 
+                className="flex items-center justify-center w-5 h-5 rounded-full bg-slate-800/90 border border-slate-700 text-slate-400 shadow-sm" 
+                title="Peça única (sem componentes)"
+              >
+                <Minus className="h-3 w-3 text-slate-400 font-bold" />
               </div>
             ) : (
               <div 
diff --git a/src/hooks/usePecas.tsx b/src/hooks/usePecas.tsx
index 2a97131..1df4895 100644
--- a/src/hooks/usePecas.tsx
+++ b/src/hooks/usePecas.tsx
@@ -567,15 +567,17 @@ export function usePecas() {
         }
       }
 
-      // 4. Inserir/Sincronizar Componentes
+      // 4. Inserir/Sincronizar Componentes (Limpa resíduos se a peça virou simples ou foi reimportada)
       let totalComponentesInseridos = 0;
-      if (componentesMap.size > 0) {
-        console.log('🔧 Inserindo e sincronizando componentes...');
-        
-        for (const [pecaKey, componentes] of componentesMap.entries()) {
-          const pecaId = pecaIdResolvedMap.get(pecaKey);
-          
-          if (pecaId && componentes.length > 0) {
+      console.log('🔧 Inserindo e sincronizando componentes...');
+      
+      for (const peca of pecasParaProcessar) {
+        const pecaKey = `${peca.of_number || ''}-${peca.etapa_fase || ''}-${peca.marca || ''}`;
+        const pecaId = pecaIdResolvedMap.get(pecaKey);
+        const componentes = componentesMap.get(pecaKey) || [];
+
+        if (pecaId) {
+          if (componentes.length > 0) {
             // Limpar componentes antigos desta peça para atualizar de forma limpa
             await supabase
               .from('componentes_peca')
@@ -596,6 +598,12 @@ export function usePecas() {
             } else {
               totalComponentesInseridos += componentesComPecaId.length;
             }
+          } else {
+            // Peça simples sem componentes: limpar componentes residuais antigos caso existissem
+            await supabase
+              .from('componentes_peca')
+              .delete()
+              .eq('peca_id', pecaId);
           }
         }
       }